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5,120

5,120 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 Harshad / Niven

Properties

Parity
Even
Digit count
4
Digit sum
8
Digital root
8
Palindrome
No
Divisor count
22
σ(n) — sum of divisors
12,282

Primality

Prime factorization: 2 10 × 5

Divisors & multiples

All divisors (22)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 32 · 40 · 64 · 80 · 128 · 160 · 256 · 320 · 512 · 640 · 1024 · 1280 · 2560 · 5120
Aliquot sum (sum of proper divisors): 7,162
Factor pairs (a × b = 5,120)
1 × 5120
2 × 2560
4 × 1280
5 × 1024
8 × 640
10 × 512
16 × 320
20 × 256
32 × 160
40 × 128
64 × 80
First multiples
5,120 · 10,240 · 15,360 · 20,480 · 25,600 · 30,720 · 35,840 · 40,960 · 46,080 · 51,200

Representations

In words
five thousand one hundred twenty
Ordinal
5120th
Binary
1010000000000
Octal
12000
Hexadecimal
1400

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 5120, here are decompositions:

  • 7 + 5113 = 5120
  • 13 + 5107 = 5120
  • 19 + 5101 = 5120
  • 43 + 5077 = 5120
  • 61 + 5059 = 5120
  • 97 + 5023 = 5120
  • 109 + 5011 = 5120
  • 127 + 4993 = 5120

Showing the first eight; more decompositions exist.

Unicode codepoint
U+1400
Dash punctuation (Pd)

UTF-8 encoding: E1 90 80 (3 bytes).

Hex color
#001400
RGB(0, 20, 0)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.20.0.