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42,770

42,770 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
20
Digital root
2
Palindrome
No
Divisor count
32
σ(n) — sum of divisors
96,768

Primality

Prime factorization: 2 × 5 × 7 × 13 × 47

Divisors & multiples

All divisors (32)
1 · 2 · 5 · 7 · 10 · 13 · 14 · 26 · 35 · 47 · 65 · 70 · 91 · 94 · 130 · 182 · 235 · 329 · 455 · 470 · 611 · 658 · 910 · 1222 · 1645 · 3055 · 3290 · 4277 · 6110 · 8554 · 21385 · 42770
Aliquot sum (sum of proper divisors): 53,998
Factor pairs (a × b = 42,770)
1 × 42770
2 × 21385
5 × 8554
7 × 6110
10 × 4277
13 × 3290
14 × 3055
26 × 1645
35 × 1222
47 × 910
65 × 658
70 × 611
91 × 470
94 × 455
130 × 329
182 × 235
First multiples
42,770 · 85,540 · 128,310 · 171,080 · 213,850 · 256,620 · 299,390 · 342,160 · 384,930 · 427,700

Representations

In words
forty-two thousand seven hundred seventy
Ordinal
42770th
Binary
1010011100010010
Octal
123422
Hexadecimal
A712

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42770, here are decompositions:

  • 3 + 42767 = 42770
  • 19 + 42751 = 42770
  • 43 + 42727 = 42770
  • 61 + 42709 = 42770
  • 67 + 42703 = 42770
  • 73 + 42697 = 42770
  • 103 + 42667 = 42770
  • 127 + 42643 = 42770

Showing the first eight; more decompositions exist.

Unicode codepoint
U+A712
Modifier symbol (Sk)

UTF-8 encoding: EA 9C 92 (3 bytes).

Hex color
#00A712
RGB(0, 167, 18)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.167.18.

Possible US bank routing number

This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.

Routing number
000042770
Federal Reserve
United States Government

Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.