# 112 (number)

 ← 111 112 113 →
Cardinal one hundred twelve
Ordinal 112th
(one hundred twelfth)
Factorization 24× 7
Divisors 1, 2, 4, 7, 8, 14, 16, 28, 56, 112
Greek numeral ΡΙΒ´
Roman numeral CXII
Binary 11100002
Ternary 110113
Quaternary 13004
Quinary 4225
Senary 3046
Octal 1608
Duodecimal 9412
Vigesimal 5C20
Base 36 3436

112 (one hundred [and] twelve) is the natural number following 111 and preceding 113.

## In mathematics

112 is an abundant number, a heptagonal number,[1] and a Harshad number.[2] It is also the sum of six consecutive primes (${\displaystyle 11+13+17+19+23+29}$).

## In telephony

• throughout the European Union – in some cases, alongside other, country-specific emergency numbers.
• in various other countries.
• on mobile phones implementing the GSM standard, where it redirects to the country-specific emergency number.

## In other fields

One hundred [and] twelve is also:

• 112 is the number of pounds in a British long hundredweight.[3]
• The section of the Thai criminal code dealing with lèse majesté, often used as a shorthand for matters concerning opposition to the Thai monarchy.
• The number of surat al-Ikhlas in the Qur'an

## References

1. ^ "Sloane's A000566 : Heptagonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-26.
2. ^ "Sloane's A005349 : Niven (or Harshad) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-26.
3. ^ Paul Pasles, Benjamin Franklin's numbers: an unsung mathematical odyssey. Princeton: Princeton University Press (2008): 37