173 (number)

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Short description: Natural number
← 172 173 174 →
Cardinalone hundred seventy-three
Ordinal173rd
(one hundred seventy-third)
Factorizationprime
Prime40th
Divisors1, 173
Greek numeralΡΟΓ´
Roman numeralCLXXIII
Binary101011012
Ternary201023
Quaternary22314
Quinary11435
Senary4456
Octal2558
Duodecimal12512
HexadecimalAD16
Vigesimal8D20
Base 364T36

173 (one hundred [and] seventy-three) is the natural number following 172 and preceding 174.

In mathematics

173 is:

In astronomy

In the military

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 1990s.

In popular culture

  • The book 173 Hours in Captivity (2000)
  • SCP-173, a fictional statue

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
  • Topic of discussion during the podcast "Skeptics with a K" episode 180 [4]

See also

  • List of highways numbered 173
  • United Nations Security Council Resolution 173
  • United States Supreme Court cases, Volume 173

External links

References

  1. "Sloane's A006562 : Balanced primes". OEIS Foundation. https://oeis.org/A006562. 
  2. "Sloane's A005384 : Sophie Germain primes". OEIS Foundation. https://oeis.org/A005384. 
  3. "Sloane's A003635 : Inconsummate numbers in base 10". OEIS Foundation. https://oeis.org/A003635. 
  4. Michael Marshall (August 25, 2016). "Skeptics with a K: Episode #180". www.merseysideskeptics.org.uk/podcasts/ (Podcast). Merseyside Skeptics Society. Event occurs at 0:59:15-1:01:30. Retrieved 15 November 2016.