161 (number)

List of numbers — Integers << 160 161 162 163 164 165 166 167 168 169 >>
Cardinal	one hundred and sixty-one
Ordinal	161st (one hundred and sixty-first)
Factorization	$7 \cdot 23$
Divisors	1, 7, 23, 161
Roman numeral	CLXI
Binary	10100001
Hexadecimal	A1

161 is an odd natural number between 160 and 162

In geography

• Bahrain and Brunei each have coastlines that are 161 kilometers in length.
• Bhutan ranks #161 in world population
• The doubly landlocked country of Liechtenstein has a land area of 161 square kilometers
• Nicosia, the capital of Northern Cyprus (and the Republic of Cyprus) is 161 meters above sea level
• Northern Cyprus is the 161st nation when nations of the world are listed alphabetically
• House at 161 Bosporous Avenue, Tampa, Florida
• Water Island had a population of 161 in the 2000 census
• United States towns with a population of 161 in the 2000 census include:
  • Barnesville, Maryland
  • Cadiz, Indiana
  • Geiger, Alabama
  • Hooker, Nebraska
  • Kensal, North Dakota
  • Massilon, Illinois
  • Millbury, Ohio
  • Northland, Minnesota
  • Pinhook Corners, Oklahoma
  • Republic, Kansas
  • Samak, Utah
  • Springfield, Minnesota
  • Woodlawn Park, Oklahoma

In mathematics

• 161 is the sum of five consecutive prime numbers: 23, 29, 31, 37, and 41
• 161 has 4 divisors: 1, 7, 23, and 161
• 161 is a hexagonal pyramidal number
• 161 is a semiprime: a product of two prime numbers: 7 and 23
• Since those prime factors are Gaussian primes, 161 is a Blum integer

In the military

• USNS Lone Jack (T-AO-161) was a U.S. Navy Type T2 tanker during World War II
• USS Barber (DE-161) was a U.S. Navy Buckley-class destroyer escort during World War II
• USS Barite (IX-161) was a U.S. Navy Trefoil-class concrete barge during World War II
• USS Beaverhead (AK-161) was a U.S. Navy Alamosa-class cargo ship during World War II
• USS Climax (AM-161) was a U.S. Navy Admirable-class minesweeper during World War II
• USS Dickens (APA-161) was a U.S. Navy Haskell-class attack transport during World War II
• USS Narada (SP-161) was a U.S. Navy wooden yacht during World War I
• USS Palmer (DD-161) was a U.S. Navy Wickes-class destroyer during World War II
• USS Salinan (ATF-161) was a U.S. Navy Achomawi fleet ocean tug following World War II
• USS S-50 (SS-161) was a U.S. Navy fourth-group S-class submarine between 1920 and 1931
• USS Stingray (SS-161) is a fictional U.S. Navy diesel engine submarine featured in the 1996 film Down Periscope
• The 161st Intelligence Squadron unit of the Kansas Air National Guard. Its parent unit is the 184th Intelligence Wing

In music

• 161 Pink Floyd songs
• The Bose 161 Speaker System (2001)
• The Kay K-161 ThinTwin guitar
• I Can't Stop Loving You (1962) by Ray Charles ranked #161 on Rolling Stone's list of the 500 Greatest Songs of All Time

In sports

• NFL quarterback Jake Plummer threw 161 career touchdowns and 161 interceptions in his career with the Arizona Cardinals (1997–2002), Denver Broncos (2003–2006), and Tampa Bay Buccaneers (2007)
• Gerd Hennig is a former German soccer referee who refereed 161 games between 1964 and 1982
• The Colorado Rockies hit 161 home runs in 2000
• Hilton Smith, a right-handed pitcher in the Negro leagues, had a record of 161 wins, 22 loses.
• Jim McAndrew pitched in 161 games for the New York Mets (1968 to 1973) and San Diego Padres (1974)
• Reggie Jackson had 161 strikeouts in 1971 with the Oakland A's

In transportation

• MTA Maryland commuter bus 161
• Seattle Metro bus route 161
• London Bus route 161

In TV and radio

• There were 161 theatrical shorts of Tom and Jerry cartoons between 1940 and 1967
• The TV series The Avengers ran from 1961 to 1969 with 161 episodes
• The TV show The Secret World of Alex Mack (1994) to (1998) focused on Alexandra "Alex" Mack, contaminated with experimental chemical substance GC-161
• The Junk Mail is the 161st episode of the TV sitcom Seinfeld, which originally aired on October 30, 1997
• The Void is the 161st episode of Star Trek: Voyager, which originally aired February 2001
• Channel 161 on the Dish Network is MTV2
• Channel 161 on Sirius XM Radio is Rock@Random, a classic rock format

In other fields

161 is also:

• The year AD 161 or 161 BC
• 161 AH is a year in the Islamic calendar that corresponds to 777 – 778 CE
• 161 kilometers is equal to approximately 100 miles
• The atomic number of an element temporarily called Unhexunium
• 161 Athor is an M-type Main belt asteroid
• E.161 is an ITU-T assigns letters to the 12-key telephone keypad
• 161 different ways to bet on a roulette wheel
• St. Christopher's Hospital for Children is a non-sectarian 161 bed children's hospital in Philadelphia
• Citigroup Centre (Sydney) and Dalian Futures Square 1, (Dalian, China) tie for 161st as the worlds tallest buildings
• Our Gang Follies of 1938 is the 161st Our Gang short comedy film, released December 18, 1937
• Gypped in the Penthouse is the 161st 169th short starring the Three Stooges released March 10, 1955
• In the film Alien 3, a pod crashes on Fiorina Fury 161

See also

• List of highways numbered 161
• United Nations Security Council Resolution 161
• United States Supreme Court cases, Volume 161

External links

• Number Facts and Trivia: 161
• The Number 161
• VirtueScience: 161
• International Alliance of Theatrical Stage Employees Local Union 161
• United Transportation Union Local 161