112 (number)
112 (one hundred [and] twelve) is the natural number following 111 and preceding 113.
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| 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 | |||
| Octal | 1608 | |||
| Duodecimal | 9412 | |||
| Hexadecimal | 7016 | |||
Mathematics
112 is an abundant number, a heptagonal number,[1] and a Harshad number.[2] It is also the sum of six consecutive primes ().
112 is the side of the smallest square that can be tiled with distinct integer-sided squares.
Science
- The atomic number of the element copernicium (formerly called ununbium).
Telephony
112 (emergency telephone number), used throughout the European Union, Russia, India and various other countries
Other uses
- 112 is the number of pounds in a British long hundredweight
- 112 is the section of the criminal code dealing with lèse majesté in Thailand
- 112 is the number of surat al-Ikhlas in the Qur'an
- The number of sons of Iora in the Census of men of Israel upon return from exile (Bible, Ezra 2:18)
See also
References
- "Sloane's A000566 : Heptagonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-26.
- "Sloane's A005349 : Niven (or Harshad) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-26.
- Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 134
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