125 (number)
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125 (one hundred [and] twenty-five) is the natural number following 124 and preceding 126.
| 125 | |
|---|---|
| Cardinal | one hundred [and] twenty-five |
| Ordinal | 125th (one hundred [and] twenty-fifth) |
| Numeral system | 125 |
| Factorization | 53 |
| Divisors | 1, 5, 25, 125 |
| Roman numeral | CXXV |
| Binary | 11111012 |
| Octal | 1758 |
| Duodecimal | A512 |
| Hexadecimal | 7D16 |
Contents |
[edit] In mathematics
One hundred [and] twenty-five 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 so many other powers of 5, it is a Friedman number in base 10 since 125 = 51 + 2.
[edit] In the military
- United States Air National Guard 125th Special Tactics Squadron unit in Portland, Oregon
- United States Air Force 125th Fighter Wing is an Air National Guard unit located at Jacksonville International Airport, Florida
- Piasecki H-21 Workhorse/Shawnee is a Arctic rescue helicopter
- United States Navy VAW-125 squadron at Naval Air Station, Norfolk, Virginia
- United States Navy Strike Fighter Squadron 125 (VFA-125) strike fighter squadron at Naval Air Station, Lemoore, California
- USNS Mission San Jose (T-AO-125) was a United States Navy Mission Buenaventura class fleet oiler fleet oilers during World War II
- USS Tide (AM-125) was a United States Navy Auk-class minesweeper for removing mines from minefields laid in the water
- Northrop YC-125 Raider utility transport plane
[edit] In transportation
- The Fiat 125 automobile
- Many motorcycle licenses and racing events (e.g. MotoGP) limit the capacity of the engine to 125cc. Examples of 125cc motorcycles include;
- The Honda XRM 125 motorcycle
- The Yamaha YZ125 is a 125 cc two-stroke motorcycle for motocross riding
- The Harlem-125th Street Metro-North Railroad station serves residents of the Harlem neighborhood of Manhattan, New York
- 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
- M-125 state trunkline route in Michigan
- Mexican Federal Highway 125
- Highway 125 in Ontario, Canada
- 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 is the Space Shuttle Atlantis mission which was 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
[edit] 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
- CA-125, also known as CA125, is an abbreviation for cancer antigen 125
- 125 High Street is a 30-floor highrise in Boston
[edit] 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
[edit] References
- ^ Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 136
