Trisha Shetty (Editor)

186 (number)

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186
  
187 →

Factorization
  
2 × 3 × 31

Binary
  
101110102

Cardinal
  
one hundred eighty-six

Roman numeral
  
CLXXXVI

Ordinal
  
186th (one hundred and eighty-sixth)

186 (one hundred [and] eighty-six) is the natural number following 185 and preceding 187.

Contents

In mathematics

  • 186 is an even number
  • 186 is an abundant number, as 198 is greater than 186
  • 186 is a composite number
  • There is no integer with exactly 186 coprimes less than it. 186 is a nontotient, nor is it ever the difference between an integer and the total of coprimes below it, thus also a noncototient
  • 186 is an odious number
  • 186 is a sphenic number, so the Möbius function returns -1 (and the Mertens function returns -4)
  • 186 is a square-free number
  • 186 is a 14-gonal number and a 63-gonal number
  • 186 factors: 2 × 3 × 31
  • 186 divisors: 1, 2, 3, 6, 31, 62, 93, 186
  • There are 186 degree-11 irreducible polynomials over a Galois field with 2 elements (sequence A001037 in the OEIS)

    • In astronomy

  • 186 Celuta is a large S-type asteroid Main belt asteroid
  • POX 186 is a small galaxy still forming

    • In geography

  • Abernethy No. 186, Saskatchewan is a rural municipality in Saskatchewan, Canada

    • In the military

  • RFA Fort Rosalie (A186) was a Royal Fleet Auxiliary armament stores carrier following World War II
  • USNS Bessemer (T-AG-186) was a United States Navy victory ship during World War II
  • USS Clemson (DD-186) was a United States Navy destroyer during World War II
  • USS Dawn (IX-186) was a United States Navy tanker ship during World War II
  • USS Habersham (AK-186) was a United States Navy Alamosa cargo-class ship during World War II
  • USS Platte (AO-186) was a United States Navy Cimarron-class ship from 1981-1999
  • USS Stingray (SS-186) was a United States Navy Salmon-class submarine during World War II
  • USS Swearer (DE-186) was a United States Navy Cannon-class destroyer escort during World War II

    • In sports

  • The light heavyweight division in mixed martial arts refers to competitors weighing between 186 and 205 pounds

    • In transportation

  • The 186 is a legendary 6-cylinder Holden engine (L6), that was first used in the Holden HR series. It has a piston displacement of 186 cubic inches (3048cc).
  • London Buses route 186
  • Cosmos 186 and Cosmos 188 incorporated a Soyuz programme descent module for landing scientific instruments and test objects

    • In other fields

    186 is also:

  • The year AD 186 or 186 BC
  • The atomic number of an element temporarily called Unocthexium
  • Minuscule 186 is a Greek minuscule manuscript of the New Testament, on parchment

    • References

    186 (number) Wikipedia
    (Text) CC BY-SA