125 (number)


Natural number




































← 124 125 126 →

← 120 121 122 123 124 125 126 127 128 129 →

List of numbers — Integers


← 0 100 200 300 400 500 600 700 800 900 →

Cardinal
one hundred twenty-five
Ordinal
125th
(one hundred twenty-fifth)
Factorization
53
Divisors
1, 5, 25, 125
Greek numeral
ΡΚΕ´
Roman numeral
CXXV
Binary
11111012
Ternary
111223
Quaternary
13314
Quinary
10005
Senary
3256
Octal
1758
Duodecimal
A512
Hexadecimal
7D16
Vigesimal
6520
Base 36
3H36

125 (one hundred [and] twenty-five) is the natural number following 124 and preceding 126.




Contents





  • 1 In mathematics


  • 2 U.S. military


  • 3 In transportation


  • 4 In other fields


  • 5 See also


  • 6 References




In mathematics


5cube.svg


125 is the cube of 5.
It can be expressed as a sum of two squares in two different ways, 125 = 10² + 5² = 11² + 2².[1]


125 and 126 form a Ruth-Aaron pair under the second definition in which repeated prime factors are counted as often as they occur.


Like many other powers of 5, it is a Friedman number in base 10 since 125 = 51 + 2.



U.S. military


  • Air National Guard 125th Special Tactics Squadron unit in Portland, Oregon

  • US Air Force 125th Fighter Wing, Air National Guard unit at Jacksonville International Airport, Florida


  • Piasecki H-21, an Arctic rescue helicopter

  • US Navy VAW-125 squadron at Naval Station Norfolk, Virginia

  • US Navy VFA-125 strike fighter squadron at Naval Air Station Lemoore, California


  • USNS Mission San Jose (T-AO-125), a US Navy fleet oiler during World War II


  • USS Tide (AM-125), a US Navy minesweeper

  • Northrop YC-125 Raider utility transport plane


In transportation


  • The Fiat 125 automobile

  • Many motorcycle licenses and racing events limit engine capacity to 125cc. Examples of 125cc motorcycles include;
    • The Honda XRM 125 motorcycle

    • The Yamaha YZ125, for motocross


  • The Harlem-125th Street (Metro-North) station serving Harlem, New York City

  • The InterCity 125, sometimes referred to simply as "one two five", a British high-speed train

  • New Jersey Transit bus route 125


  • London Buses route 125 is a Transport for London contracted bus route in London

  • 125 is the number of many roads, including Mexican Federal Highway 125


  • Pan Am Flight 125 from London’s Heathrow Airport to New York's John F. Kennedy International Airport which had pressurization problems on March 10, 1987

  • The 125th Street Bridge crosses the Mississippi River in the Minnesota


  • STS-125, a Space Shuttle Atlantis mission, the final mission to service the Hubble Space Telescope, launched May 11, 2009 at 2:01 pm EDT landed May 24, 2009 at 11:39:05 am EDT


In other fields


125 is also:


  • The year AD 125 or 125 BC

  • 125 AH is a year in the Islamic calendar that corresponds to 742 – 743 CE


  • 125 Liberatrix is a Main belt asteroid

  • The atomic number of the yet-to-be-discovered element Unbipentium


  • Sonnet 125 by William Shakespeare


  • 125th Street, Manhattan, New York City

    • 125th Street (New York City Subway), multiple subway stations


  • CA-125, also known as CA125, is an abbreviation for cancer antigen 125


  • 125 High Street is a 30-floor highrise in Boston


See also


  • 125th (disambiguation)

  • 125th Anniversary of the Confederation of Canada Medal

  • 125th Street (disambiguation)

  • List of highways numbered 125

  • United Nations Security Council Resolution 125


References




  1. ^ Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 136








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