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42,690

42,690 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 Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
21
Digital root
3
Palindrome
No
Divisor count
16
σ(n) — sum of divisors
102,528

Primality

Prime factorization: 2 × 3 × 5 × 1423

Divisors & multiples

All divisors (16)
1 · 2 · 3 · 5 · 6 · 10 · 15 · 30 · 1423 · 2846 · 4269 · 7115 · 8538 · 14230 · 21345 · 42690
Aliquot sum (sum of proper divisors): 59,838
Factor pairs (a × b = 42,690)
1 × 42690
2 × 21345
3 × 14230
5 × 8538
6 × 7115
10 × 4269
15 × 2846
30 × 1423
First multiples
42,690 · 85,380 · 128,070 · 170,760 · 213,450 · 256,140 · 298,830 · 341,520 · 384,210 · 426,900

Representations

In words
forty-two thousand six hundred ninety
Ordinal
42690th
Binary
1010011011000010
Octal
123302
Hexadecimal
A6C2

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42690, here are decompositions:

  • 7 + 42683 = 42690
  • 13 + 42677 = 42690
  • 23 + 42667 = 42690
  • 41 + 42649 = 42690
  • 47 + 42643 = 42690
  • 79 + 42611 = 42690
  • 101 + 42589 = 42690
  • 113 + 42577 = 42690

Showing the first eight; more decompositions exist.

Unicode codepoint
U+A6C2
Other letter (Lo)

UTF-8 encoding: EA 9B 82 (3 bytes).

Hex color
#00A6C2
RGB(0, 166, 194)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.166.194.