227 (number)

Number|number = 227
range = 0 - 1000
cardinal = Two hundred [and]
twenty-seven
ordinal = th
ordinal text =
numeral =
factorization = "prime"
prime =
divisor =
roman = CCXXVII
unicode =
greek prefix =
latin prefix =
bin = 11100011
oct =
duo =
hex = E3
misc =

227 is the natural number between 226 and 228. It is also a prime number.

In mathematics

227 is a prime number, and a twin prime with 229 (thus 227 is a Chen prime). 223 plus 4 is 227, so they are cousin primes. 227 plus 6 is 233, making 227 and 233 sexy primes; furthermore, 227, 233, and 239 form a sexy prime triplet.

Since (227 - 1)/2 is 113, also a prime, 227 is a safe prime.

It is also a regular prime. 227 is an Eisenstein prime with no imaginary part, and also a Gaussian prime. 227 is a Stern prime since it is not of the form $p\; +\; 2b^2$.

It can be written as the sum of the sum and the product of the first four primes:$(2\; +\; 3\; +\; 5\; +\; 7)+(2\; imes\; 3\; imes\; 5\; imes\; 7)\; =\; 227$

In popular culture

*"227", an NBC sitcom which ran from 1985-1990.
*227 was the highest score ever in the Eurovision Song Contest, achieved by Katrina and the Waves of the UK in 1997, before the Semi-final system was introduced in 2004.