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20,320

20,320 is a composite number, even.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).
Abundant Number

Properties

Parity
Even
Digit count
5
Digit sum
7
Digital root
7
Palindrome
No
Divisor count
24
σ(n) — sum of divisors
48,384

Primality

Prime factorization: 2 5 × 5 × 127

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 32 · 40 · 80 · 127 · 160 · 254 · 508 · 635 · 1016 · 1270 · 2032 · 2540 · 4064 · 5080 · 10160 · 20320
Aliquot sum (sum of proper divisors): 28,064
Factor pairs (a × b = 20,320)
1 × 20320
2 × 10160
4 × 5080
5 × 4064
8 × 2540
10 × 2032
16 × 1270
20 × 1016
32 × 635
40 × 508
80 × 254
127 × 160
First multiples
20,320 · 40,640 · 60,960 · 81,280 · 101,600 · 121,920 · 142,240 · 162,560 · 182,880 · 203,200

Representations

In words
twenty thousand three hundred twenty
Ordinal
20320th
Binary
100111101100000
Octal
47540
Hexadecimal
4F60

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 20320, here are decompositions:

  • 23 + 20297 = 20320
  • 59 + 20261 = 20320
  • 71 + 20249 = 20320
  • 89 + 20231 = 20320
  • 101 + 20219 = 20320
  • 137 + 20183 = 20320
  • 173 + 20147 = 20320
  • 191 + 20129 = 20320

Showing the first eight; more decompositions exist.

Unicode codepoint
U+4F60
Other letter (Lo)

UTF-8 encoding: E4 BD A0 (3 bytes).

Hex color
#004F60
RGB(0, 79, 96)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.79.96.