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42,972

42,972 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 Smith Number

Properties

Parity
Even
Digit count
5
Digit sum
24
Digital root
6
Palindrome
No
Divisor count
12
σ(n) — sum of divisors
100,296

Primality

Prime factorization: 2 2 × 3 × 3581

Divisors & multiples

All divisors (12)
1 · 2 · 3 · 4 · 6 · 12 · 3581 · 7162 · 10743 · 14324 · 21486 · 42972
Aliquot sum (sum of proper divisors): 57,324
Factor pairs (a × b = 42,972)
1 × 42972
2 × 21486
3 × 14324
4 × 10743
6 × 7162
12 × 3581
First multiples
42,972 · 85,944 · 128,916 · 171,888 · 214,860 · 257,832 · 300,804 · 343,776 · 386,748 · 429,720

Representations

In words
forty-two thousand nine hundred seventy-two
Ordinal
42972nd
Binary
1010011111011100
Octal
123734
Hexadecimal
A7DC

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42972, here are decompositions:

  • 5 + 42967 = 42972
  • 11 + 42961 = 42972
  • 19 + 42953 = 42972
  • 29 + 42943 = 42972
  • 43 + 42929 = 42972
  • 71 + 42901 = 42972
  • 73 + 42899 = 42972
  • 109 + 42863 = 42972

Showing the first eight; more decompositions exist.

Unicode codepoint
U+A7DC
Uppercase letter (Lu)

UTF-8 encoding: EA 9F 9C (3 bytes).

Hex color
#00A7DC
RGB(0, 167, 220)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.167.220.