173 (number)
From Infogalactic: the planetary knowledge core
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| Cardinal | one hundred seventy-three | |||
| Ordinal | 173rd (one hundred and seventy-third) |
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| Factorization | prime | |||
| Prime | 40th | |||
| Divisors | 1, 173 | |||
| Roman numeral | CLXXIII | |||
| Binary | 101011012 | |||
| Ternary | 201023 | |||
| Quaternary | 22314 | |||
| Quinary | 11435 | |||
| Senary | 4456 | |||
| Octal | 2558 | |||
| Duodecimal | 12512 | |||
| Hexadecimal | AD16 | |||
| Vigesimal | 8D20 | |||
| Base 36 | 4T36 | |||
173 (one hundred [and] seventy-three) is the natural number following 172 and preceding 174.
Contents
In mathematics
- 173 is an odd number, a deficient number, and an odious number. It is a balanced prime, an Eisenstein prime with no imaginary part, and a Sophie Germain prime. It is also an inconsummate number.
173 is the sum of 2 squares: 
. It is also the sum of three consecutive prime numbers: 53 + 59 + 61.
In astronomy
- 173 Ino is a large dark main belt asteroid
- 173P/Mueller is a periodic comet in our solar system
- Arp 173 (VV 296, KPG 439) is a pair of galaxies in the constellation Boötes
In the military
- 173rd Air Refueling Squadron unit of the Nebraska Air National Guard
- 173rd Airborne Brigade Combat Team of the United States Army based in Vicenza
- 173rd Battalion unit of the Canadian Expeditionary Force during the World War I
- 173rd Surveillance Squadron (Australia) of the Australian Army at Oakey, Queensland
- K-173 Chelyabinsk Russian Oscar class SSGN submarine at the Rybachiy Nuclear Submarine Base in Vilyuchinsk
- USNS Provo (T-AG-173) was a U.S. Navy Phoenix-class auxiliary ship following World War II
- USS Codington (AK-173) was a U.S. Navy Alamosa-class cargo ship during World War II
- USS Eldridge (DE-173) was a U.S. Navy Cannon-class destroyer escort during World War II
- USS Etamin (IX-173) was a U.S. Navy Crater-class cargo ship during World War II
- USS Florence (SP-173) was a U.S. Navy yacht during World War I
- USS Hyde (APA-173) was a U.S. Navy Haskell-classattack transport ship during World War II
- USS PC-472 was a 173-foot (53 m) U.S. Navy submarine chaser during World War II
- USS Pike (SS-173) was a U.S. Navy Porpoise class submarine diesel-electric submarine during World War II
- USS Sproston (DD-173) was a U.S. Navy Wickes class destroyer following World War II
- Vought V-173 (Flying Pancake) was a U.S. Navy experimental test aircraft during World War II
In transportation
- The Georgia Railroad, the world longest railroad in 1845, ran for 173 miles (278 km) from Augusta to Marthasville (Atlanta, Georgia)
- United Airlines Flight 173 en route from Denver to Portland crashed on December 28, 1978
- The Velocity 173 was a kit aircraft produced by Velocity Aircraft in the early '90s.
In other fields
173 is also:
- The year AD 173 or 173 BC
- 173 AH is a year in the Islamic calendar that corresponds to 789 – 790 CE
- The atomic number of an element temporarily called Unsepttrium
- The book "173 Hours in Captivity" (2000)
See also
- List of highways numbered 173
- United Nations Security Council Resolution 173
- United States Supreme Court cases, Volume 173
External links
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Wikimedia Commons has media related to 173 (number). |
