number.wiki
Number

308

308 is a composite number, even, a calendar year.

Abundant Number Harshad / Niven Year

Properties

Parity
Even
Digit count
3
Digit sum
11
Digital root
2
Palindrome
No
Divisor count
12
σ(n) — sum of divisors
672

Primality

Prime factorization: 2 2 × 7 × 11

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 7 · 11 · 14 · 22 · 28 · 44 · 77 · 154 · 308
Aliquot sum (sum of proper divisors): 364
Factor pairs (a × b = 308)
1 × 308
2 × 154
4 × 77
7 × 44
11 × 28
14 × 22
First multiples
308 · 616 · 924 · 1,232 · 1,540 · 1,848 · 2,156 · 2,464 · 2,772 · 3,080

Representations

In words
three hundred eight
Ordinal
308th
Roman numeral
CCCVIII
Binary
100110100
Octal
464
Hexadecimal
134

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 308, here are decompositions:

  • 31 + 277 = 308
  • 37 + 271 = 308
  • 67 + 241 = 308
  • 79 + 229 = 308
  • 97 + 211 = 308
  • 109 + 199 = 308
  • 127 + 181 = 308
  • 151 + 157 = 308

Showing the first eight; more decompositions exist.

Unicode codepoint
Ĵ
U+0134
Uppercase letter (Lu)

UTF-8 encoding: C4 B4 (2 bytes).

Lookup U+0134 on Compart ↗ Lookup on FileFormat.Info ↗
HTTP status code

HTTP 308 Permanent Redirect — Same as 301 but the request method must not change.

3xx class: Redirection.

Hex color
#000134
RGB(0, 1, 52)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.52.