# 100,000

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Cardinal | one hundred thousand | |||

Ordinal |
100000th (one hundred thousandth) | |||

Factorization |
2^{5}× 5^{5} | |||

Greek numeral | ||||

Roman numeral | C | |||

Unicode symbol(s) | ↈ | |||

Binary |
11000011010100000_{2} | |||

Ternary |
12002011201_{3} | |||

Quaternary |
120122200_{4} | |||

Quinary |
11200000_{5} | |||

Senary |
2050544_{6} | |||

Octal |
303240_{8} | |||

Duodecimal |
49A54_{12} | |||

Hexadecimal |
186A0_{16} | |||

Vigesimal |
CA00_{20} | |||

Base 36 |
255S_{36} |

**100,000** (**one hundred thousand**) is the natural number following 99,999 and preceding 100,001. In scientific notation, it is written as 10^{5}.

## Contents

- 1 Terms for 100000
- 2 Values of 100000
- 3 Selected 6-digit numbers (100,001–999,999)
- 4 References

## Terms for 100000[edit]

In India, Pakistan and South Asia, one hundred thousand is called a lakh, and is written as **1,00,000**. The Thai, Lao, Khmer and Vietnamese languages also have separate words for this number: แสน, ແສນ, សែន [saen] and ức respectively. No other major language has a special word for this number, preferring to refer to it as a multiple of smaller numbers.^{[citation needed]}

In Cyrillic numerals, it is known as the legion (*легион*): or .

## Values of 100000[edit]

In astronomy, **100,000 metres, 100 kilometres, or 100 km** (62 miles) is the altitude at which the Fédération Aéronautique Internationale (FAI) defines spaceflight to begin.

In the Irish Language, **céad míle fáilte** (pronounced: Irish pronunciation: [ceːd̪ˠ ˈmʲiːlʲə ˈfˠaːlʲtʲə]) is a popular greeting meaning "A Hundred Thousand Welcomes".

## Selected 6-digit numbers (100,001–999,999)[edit]

### 100,001 to 199,999[edit]

#### 100,001 to 109,999[edit]

**100,003**– smallest 6-digit prime number^{[1]}**100,255**– Friedman number^{[2]}**101,101**– smallest palindromic Carmichael number**101,723**– smallest prime number whose square is a pandigital number containing each digit from 0 to 9**102,564**– The smallest parasitic number**103,680**– highly totient number^{[3]}**103,769**– the number of combinatorial types of 5-dimensional parallelohedra**103,823**– nice Friedman number**104,723**– the 9,999th prime number**104,729**– the 10,000th prime number**104,869**– the smallest prime number containing every non-prime digit.**104,976**– 18^{4}, 3-smooth number**105,664**– harmonic divisor number^{[4]}

#### 110,000 to 119,999[edit]

**110,880**– highly composite number^{[5]}**111,111**– repunit**111,777**– smallest natural number requiring 17 syllables in American English, 19 in British English**113,634**– Motzkin number for*n*= 14^{[6]}**114,689**– prime factor of*F*_{12}**115,975**– Bell number^{[7]}**116,281**– 341^{2}, square number, centered decagonal number, 18-gon number**117,067**– first prime vampire number**117,649**– 7^{6}**117,800**– harmonic divisor number^{[4]}

#### 120,000 to 129,999[edit]

**120,284**– Keith number^{[8]}**120,960**– highly totient number^{[3]}**121,393**– Fibonacci number^{[9]}**124,000**– number of Islamic prophets**127,777**– smallest natural number requiring 18 syllables in American English, 20 in British English**127,912**– Wedderburn–Etherington number^{[10]}**128,981**– Starts the first prime gap sequence of 2, 4, 6, 8, 10, 12, 14**129,106**– Keith number^{[8]}

#### 130,000 to 139,999[edit]

**130,321**– 19^{4}**131,071**– Mersenne prime^{[11]}**131,072**– 2^{17}**131,361**– Leyland number^{[12]}**134,340**– Pluto's minor planet designation**135,137**– Markov number^{[13]}

#### 140,000 to 149,999[edit]

**142,129**– 377^{2}, square number, dodecagonal number**142,857**– Kaprekar number, Harshad number smallest cyclic number in decimal.**144,000**– number with religious significance**147,640**– Keith number^{[8]}**148,149**– Kaprekar number^{[14]}

#### 150,000 to 159,999[edit]

**156,146**– Keith number^{[8]}

#### 160,000 to 169,999[edit]

**160,000**– 20^{4}**161,051**– 11^{5}**161,280**– highly totient number^{[3]}**166,320**– highly composite number^{[5]}**167,400**– harmonic divisor number^{[4]}

#### 170,000 to 179,999[edit]

**173,600**– harmonic divisor number^{[4]}**174,680**– Keith number^{[8]}**174,763**– Wagstaff prime^{[15]}**177,147**– 3^{11}**177,777**– smallest natural number requiring 19 syllables in American English, 21 in British English**178,478**– Leyland number^{[12]}

#### 180,000 to 189,999[edit]

**181,440**– highly totient number^{[3]}**181,819**– Kaprekar number^{[14]}**183,186**– Keith number^{[8]}**187,110**– Kaprekar number^{[14]}

#### 190,000 to 199,999[edit]

**195,025**– Pell number,^{[16]}Markov number^{[13]}**196,418**– Fibonacci number,^{[9]}Markov number^{[13]}**196,883**– the dimension of the smallest nontrivial irreducible representation of the Monster group**196,884**– the coefficient of*q*in the Fourier series expansion of the j-invariant. The adjacency of 196883 and 196884 was important in suggesting monstrous moonshine.

### 200,000 to 299,999[edit]

**206,265**– number of arc seconds in a radian (see also parsec)**207,360**– highly totient number^{[3]}**208,012**– Catalan number^{[17]}**208,335**– the largest number to be both triangular and square pyramidal**208,495**– Kaprekar number^{[14]}**221,760**– highly composite number^{[5]}**222,222**– repdigit**237,510**– harmonic divisor number^{[4]}**241,920**– highly totient number^{[3]}**242,060**– harmonic divisor number^{[4]}**248,832**– 12^{5}, the smallest fifth power that can be represented as the sum of only 6 fifth powers**261,119**– Carol number^{[18]}**262,144**– 2^{18}; exponential factorial of 4;^{[19]}a superperfect number^{[20]}**262,468**– Leyland number^{[12]}**263,167**– Kynea number^{[21]}**268,705**– Leyland number^{[12]}**274,177**– prime factor of F_{6}**277,200**– highly composite number^{[5]}**279,936**– 6^{7}**280,859**– a six-digit prime number whose square (algebra) is tridigital.**293,547**– Wedderburn–Etherington number^{[10]}**294,685**– Markov number^{[13]}**298,320**– Keith number^{[8]}

### 300,000 to 399,999[edit]

**310,572**– Motzkin number^{[6]}**317,811**– Fibonacci number^{[9]}**318,682**– Kaprekar number^{[14]}**326,981**– alternating factorial^{[22]}**329,967**– Kaprekar number^{[14]}**332,640**– highly composite number;^{[5]}harmonic divisor number^{[4]}**333,333**– repdigit**333,667**– sexy prime and unique prime^{[23]}**333,673**– sexy prime**333,679**– sexy prime**351,352**– Kaprekar number^{[14]}**355,419**– Keith number^{[8]}**356,643**– Kaprekar number^{[14]}**360,360**– harmonic divisor number;^{[4]}the smallest number divisible by all of the numbers 1 through 15**362,880**– 9!, highly totient number^{[3]}**370,261**– first prime followed by a prime gap of over 100**371,293**– 13^{5}, palindromic in base 12 (15AA51_{12})**389,305**– self-descriptive number in base 7**390,313**– Kaprekar number^{[14]}**390,625**– 5^{8}**397,585**– Leyland number^{[12]}

### 400,000 to 499,999[edit]

**409,113**– sum of the first nine factorials**422,481**– smallest number whose fourth power is the sum of three smaller fourth powers**423,393**– Leyland number^{[12]}**426,389**– Markov number^{[13]}**426,569**– cyclic number in base 12**437,760**to**440,319**– any of these numbers will cause the Apple II+ and Apple //e computers to crash to a monitor prompt when entered at the Basic prompt, due to a short-cut in the Applesoft code programming of the overflow test when evaluating 16 bit numbers.^{[24]}Entering*440000*at the prompt has been used to hack games that are protected against entering commands at the prompt after the game is loaded.**444,444**– repdigit**461,539**– Kaprekar number^{[14]}**466,830**– Kaprekar number^{[14]}**470,832**– Pell number^{[16]}**483,840**– highly totient number^{[3]}**498,960**– highly composite number^{[5]}**499,393**– Markov number^{[13]}**499,500**– Kaprekar number^{[14]}

### 500,000 to 599,999[edit]

**500,500**– Kaprekar number,^{[14]}sum of first 1000 integers**509,203**– Riesel number^{[25]}**510,510**– the product of the first seven prime numbers, thus the seventh primorial^{[26]}**514,229**– Fibonacci prime,^{[27]}Markov number^{[13]}**524,287**– Mersenne prime^{[11]}**524,288**– 2^{19}**524,649**– Leyland number^{[12]}**531,441**– 3^{12}**533,169**– Leyland number^{[12]}**533,170**– Kaprekar number^{[14]}**537,824**– 14^{5}**539,400**– harmonic divisor number^{[4]}**548,834**– equal to the sum of the sixth powers of its digits**554,400**– highly composite number^{[5]}**555,555**– repdigit

### 600,000 to 699,999[edit]

**604,800**– number of seconds in a week**646,018**– Markov number^{[13]}**665,280**– highly composite number^{[5]}**666,666**– repdigit**676,157**– Wedderburn–Etherington number^{[10]}**678,570**– Bell number^{[7]}**694,280**– Keith number^{[8]}**695,520**– harmonic divisor number^{[4]}

### 700,000 to 799,999[edit]

**720,720**– superior highly composite number;^{[28]}colossally abundant number;^{[29]}the smallest number divisible by all the numbers 1 through 16**725,760**– highly totient number^{[3]}**726,180**– harmonic divisor number^{[4]}**742,900**– Catalan number^{[17]}**753,480**– harmonic divisor number^{[4]}**759,375**– 15^{5}**765,623**– emirp, Friedman number 5^{6}× 7^{2}− 6 ÷ 3**777,777**– repdigit, smallest natural number requiring 20 syllables in American English, 22 in British English

### 800,000 to 899,999[edit]

**823,543**– 7^{7}**832,040**– Fibonacci number^{[9]}**853,467**– Motzkin number^{[6]}**873,612**– 1^{1}+ 2^{2}+ 3^{3}+ 4^{4}+ 5^{5}+ 6^{6}+ 7^{7}**888,888**– repdigit

### 900,000 to 999,999[edit]

**909,091**– unique prime**925,765**– Markov number^{[13]}**925,993**– Keith number^{[8]}**950,976**– harmonic divisor number^{[4]}**967,680**– highly totient number^{[3]}**999,983**– largest 6-digit prime number**999,999**– repdigit. Rational numbers with denominators 7 and 13 have 6-digit repetends when expressed in decimal form, because 999999 is divisible by 7 and by 13.

## References[edit]

**^**Sloane, N.J.A. (ed.). "Sequence A003617 (Smallest n-digit prime)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 7 September 2017.**^**"Problem of the Month (August 2000)". Archived from the original on 2012-12-18. Retrieved 2013-01-13.- ^
^{a}^{b}^{c}^{d}^{e}^{f}^{g}^{h}^{i}^{j}Sloane, N.J.A. (ed.). "Sequence A097942 (Highly totient numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17. - ^
^{a}^{b}^{c}^{d}^{e}^{f}^{g}^{h}^{i}^{j}^{k}^{l}^{m}Sloane, N.J.A. (ed.). "Sequence A001599 (Harmonic or Ore numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17. - ^
^{a}^{b}^{c}^{d}^{e}^{f}^{g}^{h}Sloane, N.J.A. (ed.). "Sequence A002182 (Highly composite numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17. - ^
^{a}^{b}^{c}Sloane, N.J.A. (ed.). "Sequence A001006 (Motzkin numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17. - ^
^{a}^{b}Sloane, N.J.A. (ed.). "Sequence A000110 (Bell or exponential numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17. - ^
^{a}^{b}^{c}^{d}^{e}^{f}^{g}^{h}^{i}^{j}Sloane, N.J.A. (ed.). "Sequence A007629 (Repfigit (REPetitive FIbonacci-like diGIT) numbers (or Keith numbers)access-date=2016-06-17)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. - ^
^{a}^{b}^{c}^{d}Sloane, N.J.A. (ed.). "Sequence A000045 (Fibonacci numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17. - ^
^{a}^{b}^{c}Sloane, N.J.A. (ed.). "Sequence A001190 (Wedderburn-Etherington numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17. - ^
^{a}^{b}Sloane, N.J.A. (ed.). "Sequence A000668 (Mersenne primes)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17. - ^
^{a}^{b}^{c}^{d}^{e}^{f}^{g}^{h}Sloane, N.J.A. (ed.). "Sequence A076980 (Leyland numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17. - ^
^{a}^{b}^{c}^{d}^{e}^{f}^{g}^{h}^{i}Sloane, N.J.A. (ed.). "Sequence A002559 (Markoff (or Markov) numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17. - ^
^{a}^{b}^{c}^{d}^{e}^{f}^{g}^{h}^{i}^{j}^{k}^{l}^{m}^{n}Sloane, N.J.A. (ed.). "Sequence A006886 (Kaprekar numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17. **^**Sloane, N.J.A. (ed.). "Sequence A000979 (Wagstaff primes)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17.- ^
^{a}^{b}Sloane, N.J.A. (ed.). "Sequence A000129 (Pell numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17. - ^
^{a}^{b}Sloane, N.J.A. (ed.). "Sequence A000108 (Catalan numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17. **^**"Sloane's A093112 : a(n) = (2^n-1)^2 - 2". Archived from the original on 2016-06-23. Retrieved 2016-06-17.**^**"Sloane's A049384 : a(0)=1, a(n+1) = (n+1)^a(n)access-date=2016-06-17". Archived from the original on 2016-05-26.**^**Sloane, N.J.A. (ed.). "Sequence A019279 (Superperfect numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17.**^**"Sloane's A093069 : a(n) = (2^n + 1)^2 - 2". Archived from the original on 2016-08-05. Retrieved 2016-06-17.**^**Sloane, N.J.A. (ed.). "Sequence A005165 (Alternating factorials)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17.**^**Sloane, N.J.A. (ed.). "Sequence A040017 (Unique period primes)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17.**^**"Archived copy". Archived from the original on 2016-04-15. Retrieved 2016-04-04. Disassembled ROM. See comments at $DA1E.**^**Sloane, N.J.A. (ed.). "Sequence A101036 (Riesel numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17.**^**Sloane, N.J.A. (ed.). "Sequence A002110 (Primorial numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17.**^**Sloane, N.J.A. (ed.). "Sequence A005478 (Prime Fibonacci numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17.**^**Sloane, N.J.A. (ed.). "Sequence A002201 (Superior highly composite numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17.**^**Sloane, N.J.A. (ed.). "Sequence A004490 (Colossally abundant numbers)".*The On-Line Encyclopedia of Integer Sequences*. OEIS Foundation. Retrieved 2016-06-17.