155 (number): Difference between revisions
Content deleted Content added
JonRichfield (talk | contribs) Added coincident sum of consecutive primes and semiprime product of the largest and smallest of those primes |
Updated information. |
||
| Line 6: | Line 6: | ||
'''155''' ('''one hundred fifty-five''' or '''one hundred and fifty-five''') is the [[natural number]] following [[154 (number)|154]] and preceding [[156 (number)|156]]. It is a [[composite number]] and a [[semiprime]]. |
'''155''' ('''one hundred fifty-five''' or '''one hundred and fifty-five''') is the [[natural number]] following [[154 (number)|154]] and preceding [[156 (number)|156]]. It is a [[composite number]] and a [[semiprime]]. |
||
If you add up all the primes from the least through the greatest prime factors of 155, that is, 5 and 31, the result is 155. {{OEIS|id=A055233}} Only three other semiprimes (10, 39, and 371) |
If you add up all the primes from the least through the greatest prime factors of 155, that is, 5 and 31, the result is 155. {{OEIS|id=A055233}} Only three other small semiprimes (10, 39, and 371) share this attribute. |
||
There are 155 primitive permutations of degree 81. {{OEIS2C|id=A000019}} |
There are 155 primitive permutations of degree 81. {{OEIS2C|id=A000019}} |
||
Revision as of 19:14, 13 January 2014
 |
| ||||
|---|---|---|---|---|
| Cardinal | one hundred fifty-five | |||
| Ordinal | 155th (one hundred fifty-fifth) | |||
| Factorization | 5 × 31 | |||
| Divisors | 1, 5, 31, 155 | |||
| Greek numeral | ||||
| Roman numeral | CLV | |||
| Binary | 100110112 | |||
| Ternary | 122023 | |||
| Senary | 4156 | |||
| Octal | 2338 | |||
| Duodecimal | 10B12 | |||
| Hexadecimal | 9B16 | |||
155 (one hundred fifty-five or one hundred and fifty-five) is the natural number following 154 and preceding 156. It is a composite number and a semiprime.
If you add up all the primes from the least through the greatest prime factors of 155, that is, 5 and 31, the result is 155. (sequence A055233 in the OEIS) Only three other small semiprimes (10, 39, and 371) share this attribute.
There are 155 primitive permutations of degree 81. OEIS: A000019
In the military
- USS Capable (AM-155) was a United States Navy Admirable minesweeper ship during World War II
- USS Cole (DD-155) was a United States Navy Wickes-class destroyer during World War II
- USS General A. W. Brewster (AP-155) was a United States Navy General G. O. Squier transport ship during World War II
- USS Hopping (DE-155) was a United States Navy Buckley destroyer escort ship during World War II
- USS Lycoming (APA-155) was a United States Navy Haskell-class attack transport during World War II
- USS Mustang (IX-155) was a United States Navy four-master wooden schooner during World War II
In sports
- NFL quarterback Danny White threw 155 touchdowns in his career from 1976 to 1988
- Quarterback Condredge Holloway scored 155 touchdowns with the Ottawa Rough Riders (1975–1980); Toronto Argonauts (1981–1986); and BC Lions (1987) in the Canadian Football League
- The maximum possible score in a single break in snooker, with a free ball at the start of the break (147 is the highest possible without a free ball)
- The Polo Grounds, former home of the New York Giants baseball team was located on West 155th Street and 8th Avenue in New York City
In transportation
- Alfa Romeo 155, a compact executive car produced from 1992–1998
- Seattle Bus Route 155
- London Bus Route 155
- The British Rail Class 155 is a diesel multiple unit British train
- Arianespace Flight 155 carried the Atlantic Bird 1 telecommunications satellite, and a weather satellite for the European Meteorological Satellite on August 29, 2002[1]
- Air Canada Flight 155 was forced to return to Trudeau Airport due of a problem with its landing gear hydraulics on September 23, 2007
- Blériot 155 was a French airliner of the 1920s
- Groton-New London Airport address is 155 Tower Avenue, Groton, Connecticut
- 155th Street, Manhattan, New York
- 155th Street New York Subway stations:
- 155th Street station on Eighth Avenue on the IND Concourse Line, served by the B and D lines
- 155th Street station at Saint Nicholas Avenue on the IND Eighth Avenue Line, served by the A and C lines
- 155th Street was the Ninth Avenue elevated line’s north terminal from 1870 to 1958
- Interstate 155:
- Interstate 155 (Illinois), a spur to Peoria, Illinois
- Interstate 155 (Missouri-Tennessee), a spur to Dyersburg, Tennessee
- Alabama State Route 155
- California State Route 155
- Connecticut Route 155
- Florida State Road 155
- Georgia State Route 155
- Illinois Route 155
- Kentucky Route 155
- M-155 is a former state trunkline highway in Livingston County, Michigan
- New Hampshire Route 155
- New York State Route 155
- Pennsylvania Route 155
- Tennessee State Route 155
- Texas State Highway 155
- Vermont Route 155
- Virginia State Route 155
- Washington State Route 155
- Wisconsin Highway 155
- Route 155 in western Prince County, Prince Edward Island, Canada runs between Tignish and Miminegash
- Quebec Route 155 in Quebec, Canada runs from Chambord to Shawinigan
- Saskatchewan Highway 155 in the Canadian province of Saskatchewan
- Winnipeg Route 155 in Winnipeg, Manitoba runs from the Perimeter Highway to Route 42/Pembina Hwy
- National Route 155 is a national highway of Japan connecting Tokoname, Aichi and Yatomi, Aichi in Japan
In TV and radio
- The TV series Sea Hunt ran in syndication from 1958 to 1961 with 155 episodes
- Lupin III Part II contains 155 episodes which aired between October 3, 1977 and October 6, 1980 on Nippon Television in Japan
- Seinfeld TV episode #155 was The Muffin Tops, which originally aired May 8, 1997
- Channel 155 on Sirius Satellite Radio is Detroit/Las Vegas traffic and weather
- Channel 155 on XM Satellite Radio is Sirius XM Stars
In other fields
155 is also:
- The year AD 155 or 155 BC
- 155 is the number for the International Operator in the United Kingdom
- 155 AH is a year in the Islamic calendar that corresponds to 771 – 772 CE
- June 4 is the 155th day of the year (156th in leap years) in the Gregorian calendar
- 155 Scylla is a main belt asteroid
- Europium-155 is a radioisotope or Europium and fission product with a half-life of 4.76 years
- 155, a 2007 song by the band +44
- The dialing code for Obihiro, Japan
- Ivanhoe, the romantic opera opened January 31, 1891 and ran for 155 performances
- Little Jack Sheppard opened at the Gaiety Theatre in London on December 26, 1885 and ran for 155 performances
- Qatar ranks #155 in world population
- The atomic number of an element temporarily called unquintquinttium
- 155 North Wacker is a 46-story skyscraper under construction in Chicago
- St. Elizabeth Medical Center is a 155-bed hospital in Lafayette, Indiana
- Rucker Park in Manhattan, at 155th Street and Frederick Douglass Boulevard
- Wolseley No. 155, Saskatchewan is a rural municipality in Canada
- Norfolk, England has a low population density of 155 people per square kilometer
- U.S. towns with a population of 155 in the 2000 census include:
See also
- List of highways numbered 155
- United Nations Security Council Resolution 155
- United States Supreme Court cases, Volume 155
- Psalms 152–155
- McHenry County, Illinois Community High School District 155
- 155th meridian west and 155th meridian east
References
External links
Wikimedia Commons has media related to 155 (number).