From Wikipedia, the free encyclopedia

112 is the natural number following 111 and preceding 113.

← 111 113 → 112
← 110 111 112 113 114 115 116 117 118 119 → List of numbers — Integers ← 100 110 120 130 140 150 160 170 180 190 →
Cardinal	one hundred [and] twelve
Ordinal	112th (one hundred [and] twelfth)
Numeral system	112
Factorization
Divisors	1, 2, 4, 7, 8, 14, 16, 28, 56, 112
Roman numeral	CXII
Binary	11100002
Octal	1608
Duodecimal	9412
Hexadecimal	7016

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

• The atomic number of an element temporarily called ununbium.
• 112 Iphigenia is a fairly large and exceedingly dark Main belt asteroid

In telephony

The 1-1-2 emergency telephone number:

• In most countries in Europe.
• In all GSM mobile phones. Even if the country does not recognize the number, the phone redirects the call to the local emergency telephone number, if it exists.

In other fields

One hundred [and] twelve is also:

• The year AD 112 or 112 BC.
• 112 AH is a year in the Islamic calendar that corresponds to 730 – 731 CE
• 112 is the number of pounds in a British long hundredweight.^[1]
• The number of surat al-Ikhlas in the Qur'an
• 112 Gripes about the French was a 1945 handbook issued by the United States military to enlisted personnel arriving in France after the Liberation
• STS-112 was a Space Shuttle mission to the International Space Station (ISS) flown by Space Shuttle Atlantis in October 2002
• U.S. Route 112 is a designation, defunct since the beginning of 1962, for an east-west highway in Michigan
• Quebec Route 112 is a busy east/west highway on the south shore of the Saint Lawrence River in Quebec, Canada
• The 112th Street Bridge links Cohoes, New York with Lansingburgh
• Hill 112 is an area, SW of Caen, just off road junction 10, onto route D8, near Esquay, the scene of major battles during the Battle of Normandy
• 112 Ocean Avenue, Amityville, New York, is a six-bedroom Dutch Colonial style house built in the 1920s known for the setting of The Amityville Horror
• CAW Local 112 is a local union of the Canadian Auto Workers (CAW) union
• The USS Grumium (AK-112) was a Crater-class cargo and aviation supply ship in the service of the United States Navy in World War II
• Marine Fighter Attack Squadron (VMFA-112) is a reserve United States Marine Corps F/A-18 Hornet squadron based at NASJRB Fort Worth, Texas
• HX.112 was a North Atlantic convoy of the HX series which ran during the battle of the Atlantic in World War II
• The USS Guilford (APA-112) was a Bayfield-class attack transport built for the United States Navy during World War II
• USS Beagle (IX-112), an Armadillo-class tanker designated an unclassified miscellaneous vessel, was the second ship of the United States Navy launched in 1943
• The second USS Ludlow (DD-112) was a Wickes class destroyer in the United States Navy during the World War I
• Lada 112 is a car model, part of the Lada line, produced by Russian auto manufacturer AvtoVAZ in 2000
• Experience 112 is an adventure video game published by Micro Application in 2007
• USS Tulare (AKA-112) was a Tulare class attack cargo ship in the United States Navy
• AS112, a DNS-related internet service that catches many invalid DNS requests.

See also

• List of highways numbered 112
• Persons living to the age of 112

References

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

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