number.wiki
Number

249

249 is a composite number, odd, a calendar year.

Deficient Number Squarefree Year

Properties

Parity
Odd
Digit count
3
Digit sum
15
Digital root
6
Palindrome
No
Divisor count
4
σ(n) — sum of divisors
336

Primality

Prime factorization: 3 × 83

Divisors & multiples

All divisors (4)
1 · 3 · 83 · 249
Aliquot sum (sum of proper divisors): 87
Factor pairs (a × b = 249)
1 × 249
3 × 83
First multiples
249 · 498 · 747 · 996 · 1,245 · 1,494 · 1,743 · 1,992 · 2,241 · 2,490

Representations

In words
two hundred forty-nine
Ordinal
249th
Roman numeral
CCXLIX
Binary
11111001
Octal
371
Hexadecimal
F9

Also seen as

Unicode codepoint
ù
U+00F9
Lowercase letter (Ll)

UTF-8 encoding: C3 B9 (2 bytes).

Hex color
#0000F9
RGB(0, 0, 249)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.249.