200 (number)

200 (two hundred) is the natural number following 199 and preceding 201.

← 199 200 201 →
Cardinaltwo hundred
Ordinal200th
(two hundredth)
Factorization23 × 52
Divisors1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200
Greek numeralΣ´
Roman numeralCC
Binary110010002
Ternary211023
Octal3108
Duodecimal14812
HexadecimalC816

The number appears in the Padovan sequence, preceded by 86, 114, 151 (it is the sum of the first two of these).[1]

The sum of Euler's totient function φ(x) over the first twenty-five integers is 200.

200 is the smallest base 10 unprimeable number – it can not be turned into a prime number by changing just one of its digits to any other digit. It is also a Harshad number.

Two hundred is also:

  • A common ISO-standard film speed for photographic films. However, 200 speed film is being phased out in consumer films in favor of faster films.
  • A denomination of the euro note. The 200 euro note was designed by Robert Kalina.
  • 200 MeV is the temperature of quark–gluon plasma phase transition.
  • An HTTP status code indicating a successful connection; the code is "200 OK".
  • The sum of pounds (or dollars) given in the classical Monopoly game to a player passing Go.
  • A cholesterol level of 200 and below is considered "desirable level corresponding to lower risk for heart disease".
  • The number of NASCAR Cup Series races won by Richard Petty.
  • A year.
  • A vehicle that has reached 200 mph.
  • The North West 200, a motorcycle race held in Northern Ireland.[2]

ReferencesEdit

  1. ^ "Sloane's A000931 : Padovan sequence". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-28.
  2. ^ North West 200 http://www.northwest200.org/ Archived 2007-03-09 at the Wayback Machine