199 (NUMBER)

'199' is the natural number between 198 and 200. It is also a prime number.
CardinalOne hundred [and]
ninety-nine
Ordinal 199th
Factorization prime number
Roman numeral CXCIX
Binary 11000111
Hexadecimal C7


Contents
In mathematics

In mathematics



★ 199 is a prime number, a twin prime with 197, and also a permutable prime.

★ Coming at the end of a prime quadruplet, 199 sets a record low of the Mertens function, -8.

★ 199 is the sum of three consecutive primes (61 + 67 + 71) as well as the sum of five consecutive primes (31 + 37 + 41 + 43 + 47).

★ 199 is a Lucas number, a centered triangular number and a Chen prime.

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