145 (number)
| Cardinal | One hundred [and] forty five |
| Ordinal | 145th |
| Factorization |  |
| Divisors | 1, 5, 29, 145 |
| Roman numeral | CXLV |
| Binary | 10010001 |
| Hexadecimal | 91 |
145 is the natural number following 144 and preceding 146.
Contents |
In mathematics
- Although composite, 145 is a pseudoprime.
- Given 145, the Mertens function returns 0.
- 145 is a pentagonal number and a centered square number.
. 145 is the fourth number that is the sum of two different pairs of squares. Also, 145 is the result of 34 + 43, making it a Leyland number.
, making it a factorion. The only other numbers that have the property that they are the sum of the factorials of their digits are 1, 2 and 40585.
145th Street, Manhattan
- 145th Street (Manhattan)
- 145th Street Bridge connects 145th Street and the Bronx
- New York City Subway stations in Manhattan:
- 145th Street (IND Eighth Avenue Line), a station at St. Nicholas Avenue served by the A B C D trains
- 145th Street (IRT Broadway – Seventh Avenue Line), a station at Broadway served by the 1 train
- 145th Street (IRT Lenox Avenue Line), a station at Malcolm X Boulevard served by the 3 train
In the military
- USS Armada (AM-145) was a United States Navy Admirable minesweeper ship during World War II
- USS Colbert (APA-145) was a United States Navy Haskell class attack transport during World War II
- USS General Harry Taylor (AP-145) was a United States Navy General G. O. Squier transport ship during World War II
- USS Greer (DD-145) was a United States Navy Wickes class destroyer during World War II
- USS Huse (DE-145) was a United States Navy Edsall class destroyer during World War II
- USS Roanoke (CL-145) was a United States Navy cruiser following World War II
In sports
- The Grand Union Canal Race is a 145-mile ultramarathon from Birmingham to London along the Grand Union Canal
- Football Hall of Famer Marcus Allen had 145 touchdowns in his NFL career
- Ted Williams hit 31 home runs, and had 145 RBI as a rookie in 1939
- During the NHL 2005-2006 season
- About 12% of all games (145 of 1,230) were decided by a shootout
- Teams scored 7,443 goals—not including 145 goals awarded to clubs winning a shootout
In transportation
- Eurocopter EC 145 is a twin-engine light utility helicopter
- The Delahaye 145 Sports Car from 1938
- The Alfa Romeo 145 car produced between 1994 and 2001
- Volvo 145 Express station wagon
- ERJ 145 regional jets produced by Embraer
- Golden Gate Transit Bus Route 145
- London Bus Route 145
- Alabama State Route 145 runs from Clanton to Wilsonville
- California State Route 145 runs from Interstate 5 to Fresno
- Connecticut Route 145 runs from Clinton to Chester
- Illinois Route 145 runs from Metropolis to Harrisburg
- Maryland Route 145 runs from Cockeysville to Baldwin
- Massachusetts Route 145 in Suffolk County
- Missouri Route 145 in Mercer County
- New York State Route 145 runs from Cairo to Sharon
- Pennsylvania Route 145 in Lehigh Valley
- Virginia State Route 145 runs from Chesterfield to Richmond
- Winnipeg Route 145 runs from the Perimeter Highway to Route 80/Waverley Street
In TV and radio
- The TV series Spin City ran on ABC from 1996 to 2002 with 145 episodes
- Channel 145 on the Dish Network is ESPN Alternate
- Channel 145 on XM Satellite Radio is IndyCar
- Channel 145 on Sirius Satellite Radio is Fox News Talk
In other fields
145 is also:
- The year AD 145 or 145 BC
- A musical progression built on the 1st, 4th and 5th note of the major scale
- 145 AH is a year in the Islamic calendar that corresponds to 762 – 763 CE
- 145 Adeona is a large Main belt asteroid
- Psalm 145
- Sonnet 145
- Apple Computer laptops, such as the PowerBook 145 and PowerBook 145B
- Botswana ranks #145 in world population
- Puff Daddy song “Picture it” includes the lyrics “in something foreign soarin’ 145”
- 145th Street blues band
- Tsuu T'ina Nation 145 Indian reserve in Alberta, Canada
- The 2004 film “Love and 145 Watts” starring Jessica Baxter
- The atomic number of Unquadpentium
- 145 mg medicine tablets, as with Tricor
- "One Four Five" is a song by The Cat Empire
See also
- List of highways numbered 145
- United Nations Security Council Resolution 145
- United States Supreme Court cases, Volume 145
External links
References
- Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 140