112 (number)

112 (number)

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

← 111
113 →
112
Cardinal one hundred [and] twelve
Ordinal 112th
(one hundred [and] twelfth)
Numeral system 112
Factorization 2^4 \cdot 7
Divisors 1, 2, 4, 7, 8, 14, 16, 28, 56, 112
Roman numeral CXII
Binary 11100002
Octal 1608
Duodecimal 9412
Hexadecimal 7016

Contents

In mathematics

One hundred [and] twelve is an abundant number and a heptagonal number. It is also the sum of six consecutive primes (11 + 13 + 17 + 19 + 23 + 29).

112 is in base 10 both a Harshad number.

In science

In telephony

112 is an emergency telephone number:

  • 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:

See also

References

  1. ^ Paul Pasles, Benjamin Franklin's numbers: an unsung mathematical odyssey. Princeton: Princeton University Press (2008): 37

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