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Number

239

239 is a prime, odd, a calendar year.

Deficient Number Happy Number Prime Sexy Prime Squarefree Twin Prime Year

Properties

Parity
Odd
Digit count
3
Digit sum
14
Digital root
5
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
240

Primality

239 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 239
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 239)
1 × 239
First multiples
239 · 478 · 717 · 956 · 1,195 · 1,434 · 1,673 · 1,912 · 2,151 · 2,390

Representations

In words
two hundred thirty-nine
Ordinal
239th
Roman numeral
CCXXXIX
Binary
11101111
Octal
357
Hexadecimal
EF

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 233 (gap of 6)
  • Next prime: 241 (gap of 2)

Pair status: twin with 241, sexy with 233.

Unicode codepoint
ï
U+00EF
Lowercase letter (Ll)

UTF-8 encoding: C3 AF (2 bytes).

Hex color
#0000EF
RGB(0, 0, 239)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.239.