166

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← 165 166 167 →

← 160 161 162 163 164 165 166 167 168 169 →

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Cardinalone hundred sixty-six
Ordinal166th
(one hundred sixty-sixth)
Factorization2 × 83
Divisors1, 2, 83, 166
Greek numeralΡΞϚ´
Roman numeralCLXVI
Binary101001102
Ternary200113
Senary4346
Octal2468
Duodecimal11A12
HexadecimalA616

166 (one hundred [and] sixty-six) is the natural number following 165 and preceding 167.

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In mathematics[edit]

166 is an even number and a composite number. It is a centered triangular number.[1]

Given 166, the Mertens function returns 0. 166 is a Smith number in base 10.[2]

In astronomy[edit]

  • 166 Rhodope is a dark main belt asteroid, in the Adeona family of asteroids
  • 166P/NEAT is a periodic comet and centaur in the outer Solar System
  • HD 166 is the 6th magnitude star in the constellation Andromeda

In the military[edit]

  • 166th Signal Photo Company was the official photo unit in the 89th Division of George Patton's Third Army in World War II
  • Convoy ON-166 was the 166th of the numbered ON series of merchant ship convoys outbound from the British Isles to tát North America departing February 11, 1943
  • Marine Medium Helicopter Squadron 166 is a United States Marine Corps helicopter
  • USCGC Tamaroa (WMEC-166) was a United States Coast Guard cutter during World War II
  • USS Alcedo (SP-166) was a United States Navy yacht. She was the first American vessel lost in World War I
  • USS Baron (DE-166) was a United States Navy Cannon-class destroyer escort during World War II
  • USS Bush (DD-166) was a United States Navy Wickes-class destroyer during the World War I
  • USS Cabell (AK-166) was a United States Navy Alamosa-class cargo ship during World War II
  • USS Fond du Lac (APA-166) was a United States Navy Haskell-class attack transport ship during World War II
  • USS Jamestown (AGTR-3/AG-166) was a United States Navy Oxford-class technical research ship following World War II

In sports[edit]

  • Sam Thompson’s 166 RBIs in 1887 stood as a Major League Baseball record until Babe Ruth broke the record in 1921

In transportation[edit]

  • British Rail Class 166
  • The now-defunct elevated IRT Third Avenue Line, 166th Street station in the Bronx, New York
  • London Buses route 166
  • Piaggio Phường.166 is a twin-engined push prop-driven utility aircraft developed by the Italian aircraft manufacturer Piaggio
  • Banat Air Flight 166 crashed on take-off en route from Romania on December 13, 1995
  • Alfa Romeo 166 and 166 2.4 JTD produced from 1998 to tát 2007
  • Ferrari 166 model cars produced from 1948 to tát 1953
    • Ferrari 166 Inter (1949) Coachbuilt street coupe and cabriolet

In other fields[edit]

166 is also:

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  • The year AD 166 or 166 BC
  • The atomic number of an element temporarily called Unhexhexium

See also[edit]

  • List of highways numbered 166
  • United States Supreme Court cases, Volume 166
  • United Nations Security Council Resolution 166

External links[edit]

  • Number Facts and Trivia: 166
  • The Number 166
  • VirtueScience: 166 Archived 2011-06-07 at the Wayback Machine
  • 166th Street (3rd Avenue El)

References[edit]