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42,660

42,660 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 Harshad / Niven

Properties

Parity
Even
Digit count
5
Digit sum
18
Digital root
9
Palindrome
No
Reversed
6,624
Divisor count
48
σ(n) — sum of divisors
134,400

Primality

Prime factorization: 2 2 × 3 3 × 5 × 79

Divisors & multiples

All divisors (48)
1 · 2 · 3 · 4 · 5 · 6 · 9 · 10 · 12 · 15 · 18 · 20 · 27 · 30 · 36 · 45 · 54 · 60 · 79 · 90 · 108 · 135 · 158 · 180 · 237 · 270 · 316 · 395 · 474 · 540 · 711 · 790 · 948 · 1185 · 1422 · 1580 · 2133 · 2370 · 2844 · 3555 · 4266 · 4740 · 7110 · 8532 · 10665 · 14220 · 21330 · 42660
Aliquot sum (sum of proper divisors): 91,740
Factor pairs (a × b = 42,660)
1 × 42660
2 × 21330
3 × 14220
4 × 10665
5 × 8532
6 × 7110
9 × 4740
10 × 4266
12 × 3555
15 × 2844
18 × 2370
20 × 2133
27 × 1580
30 × 1422
36 × 1185
45 × 948
54 × 790
60 × 711
79 × 540
90 × 474
108 × 395
135 × 316
158 × 270
180 × 237
First multiples
42,660 · 85,320 · 127,980 · 170,640 · 213,300 · 255,960 · 298,620 · 341,280 · 383,940 · 426,600

Representations

In words
forty-two thousand six hundred sixty
Ordinal
42660th
Binary
1010011010100100
Octal
123244
Hexadecimal
0xA6A4
Base64
pqQ=

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42660, here are decompositions:

  • 11 + 42649 = 42660
  • 17 + 42643 = 42660
  • 19 + 42641 = 42660
  • 71 + 42589 = 42660
  • 83 + 42577 = 42660
  • 89 + 42571 = 42660
  • 103 + 42557 = 42660
  • 127 + 42533 = 42660

Showing the first eight; more decompositions exist.

Unicode codepoint
ꚤ
Bamum Letter Ee
U+A6A4
Other letter (Lo)

UTF-8 encoding: EA 9A A4 (3 bytes).

Lookup U+A6A4 on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#00A6A4
RGB(0, 166, 164)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.166.164.

Address
0.0.166.164
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.166.164

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Possible US bank routing number

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

Routing number
000042660
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.

Look up 000042660 on FedACH ↗ Routing Number Lookup (Wise) ↗