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42,406

42,406 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.).
Deficient Number Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
16
Digital root
7
Palindrome
No
Divisor count
16
σ(n) — sum of divisors
78,624

Primality

Prime factorization: 2 × 7 × 13 × 233

Divisors & multiples

All divisors (16)
1 · 2 · 7 · 13 · 14 · 26 · 91 · 182 · 233 · 466 · 1631 · 3029 · 3262 · 6058 · 21203 · 42406
Aliquot sum (sum of proper divisors): 36,218
Factor pairs (a × b = 42,406)
1 × 42406
2 × 21203
7 × 6058
13 × 3262
14 × 3029
26 × 1631
91 × 466
182 × 233
First multiples
42,406 · 84,812 · 127,218 · 169,624 · 212,030 · 254,436 · 296,842 · 339,248 · 381,654 · 424,060

Representations

In words
forty-two thousand four hundred six
Ordinal
42406th
Binary
1010010110100110
Octal
122646
Hexadecimal
A5A6

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42406, here are decompositions:

  • 3 + 42403 = 42406
  • 47 + 42359 = 42406
  • 83 + 42323 = 42406
  • 107 + 42299 = 42406
  • 113 + 42293 = 42406
  • 149 + 42257 = 42406
  • 167 + 42239 = 42406
  • 179 + 42227 = 42406

Showing the first eight; more decompositions exist.

Unicode codepoint
U+A5A6
Other letter (Lo)

UTF-8 encoding: EA 96 A6 (3 bytes).

Hex color
#00A5A6
RGB(0, 165, 166)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.165.166.