112 (number)

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

Mathematics[]

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

112 is the number of connected graphs on 6 unlabeled nodes. ^[3]

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[]

• List of highways numbered 112

References[]

• Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 134