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77,020

77,020 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

Properties

Parity
Even
Digit count
5
Digit sum
16
Digital root
7
Palindrome
No
Divisor count
12
σ(n) — sum of divisors
161,784

Primality

Prime factorization: 2 2 × 5 × 3851

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 5 · 10 · 20 · 3851 · 7702 · 15404 · 19255 · 38510 · 77020
Aliquot sum (sum of proper divisors): 84,764
Factor pairs (a × b = 77,020)
1 × 77020
2 × 38510
4 × 19255
5 × 15404
10 × 7702
20 × 3851
First multiples
77,020 · 154,040 · 231,060 · 308,080 · 385,100 · 462,120 · 539,140 · 616,160 · 693,180 · 770,200

Representations

In words
seventy-seven thousand twenty
Ordinal
77020th
Binary
10010110011011100
Octal
226334
Hexadecimal
12CDC

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 77020, here are decompositions:

  • 3 + 77017 = 77020
  • 17 + 77003 = 77020
  • 29 + 76991 = 77020
  • 59 + 76961 = 77020
  • 71 + 76949 = 77020
  • 101 + 76919 = 77020
  • 107 + 76913 = 77020
  • 113 + 76907 = 77020

Showing the first eight; more decompositions exist.

Hex color
#012CDC
RGB(1, 44, 220)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.44.220.

Possible US bank routing number

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

Routing number
000077020
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.