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72,120

72,120 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
12
Digital root
3
Palindrome
No
Reversed
2,127
Divisor count
32
σ(n) — sum of divisors
216,720

Primality

Prime factorization: 2 3 × 3 × 5 × 601

Divisors & multiples

All divisors (32)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 · 15 · 20 · 24 · 30 · 40 · 60 · 120 · 601 · 1202 · 1803 · 2404 · 3005 · 3606 · 4808 · 6010 · 7212 · 9015 · 12020 · 14424 · 18030 · 24040 · 36060 · 72120
Aliquot sum (sum of proper divisors): 144,600
Factor pairs (a × b = 72,120)
1 × 72120
2 × 36060
3 × 24040
4 × 18030
5 × 14424
6 × 12020
8 × 9015
10 × 7212
12 × 6010
15 × 4808
20 × 3606
24 × 3005
30 × 2404
40 × 1803
60 × 1202
120 × 601
First multiples
72,120 · 144,240 · 216,360 · 288,480 · 360,600 · 432,720 · 504,840 · 576,960 · 649,080 · 721,200

Representations

In words
seventy-two thousand one hundred twenty
Ordinal
72120th
Binary
10001100110111000
Octal
214670
Hexadecimal
0x119B8
Base64
ARm4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 72120, here are decompositions:

  • 11 + 72109 = 72120
  • 17 + 72103 = 72120
  • 19 + 72101 = 72120
  • 29 + 72091 = 72120
  • 31 + 72089 = 72120
  • 43 + 72077 = 72120
  • 47 + 72073 = 72120
  • 67 + 72053 = 72120

Showing the first eight; more decompositions exist.

Unicode codepoint
𑦸
Nandinagari Letter Tta
U+119B8
Other letter (Lo)

UTF-8 encoding: F0 91 A6 B8 (4 bytes).

Hex color
#0119B8
RGB(1, 25, 184)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.25.184.

Address
0.1.25.184
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.25.184

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