number.wiki
Number

920

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

Abundant Number Year

Properties

Parity
Even
Digit count
3
Digit sum
11
Digital root
2
Palindrome
No
Divisor count
16
σ(n) — sum of divisors
2,160

Primality

Prime factorization: 2 3 × 5 × 23

Divisors & multiples

All divisors (16)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 23 · 40 · 46 · 92 · 115 · 184 · 230 · 460 · 920
Aliquot sum (sum of proper divisors): 1,240
Factor pairs (a × b = 920)
1 × 920
2 × 460
4 × 230
5 × 184
8 × 115
10 × 92
20 × 46
23 × 40
First multiples
920 · 1,840 · 2,760 · 3,680 · 4,600 · 5,520 · 6,440 · 7,360 · 8,280 · 9,200

Representations

In words
nine hundred twenty
Ordinal
920th
Roman numeral
CMXX
Binary
1110011000
Octal
1630
Hexadecimal
398

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 920, here are decompositions:

  • 13 + 907 = 920
  • 37 + 883 = 920
  • 43 + 877 = 920
  • 61 + 859 = 920
  • 67 + 853 = 920
  • 97 + 823 = 920
  • 109 + 811 = 920
  • 151 + 769 = 920

Showing the first eight; more decompositions exist.

Unicode codepoint
Θ
U+0398
Uppercase letter (Lu)

UTF-8 encoding: CE 98 (2 bytes).

Lookup U+0398 on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#000398
RGB(0, 3, 152)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.152.