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Number

480

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

Abundant Number Harshad / Niven Year

Properties

Parity
Even
Digit count
3
Digit sum
12
Digital root
3
Palindrome
No
Divisor count
24
σ(n) — sum of divisors
1,512

Primality

Prime factorization: 2 5 × 3 × 5

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 · 15 · 16 · 20 · 24 · 30 · 32 · 40 · 48 · 60 · 80 · 96 · 120 · 160 · 240 · 480
Aliquot sum (sum of proper divisors): 1,032
Factor pairs (a × b = 480)
1 × 480
2 × 240
3 × 160
4 × 120
5 × 96
6 × 80
8 × 60
10 × 48
12 × 40
15 × 32
16 × 30
20 × 24
First multiples
480 · 960 · 1,440 · 1,920 · 2,400 · 2,880 · 3,360 · 3,840 · 4,320 · 4,800

Representations

In words
four hundred eighty
Ordinal
480th
Roman numeral
CDLXXX
Binary
111100000
Octal
740
Hexadecimal
1E0

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 480, here are decompositions:

  • 13 + 467 = 480
  • 17 + 463 = 480
  • 19 + 461 = 480
  • 23 + 457 = 480
  • 31 + 449 = 480
  • 37 + 443 = 480
  • 41 + 439 = 480
  • 47 + 433 = 480

Showing the first eight; more decompositions exist.

Unicode codepoint
Ǡ
U+01E0
Uppercase letter (Lu)

UTF-8 encoding: C7 A0 (2 bytes).

Lookup U+01E0 on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#0001E0
RGB(0, 1, 224)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.224.