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2,184

2,184 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
4
Digit sum
15
Digital root
6
Palindrome
No
Reversed
4,812
Divisor count
32
σ(n) — sum of divisors
6,720

Primality

Prime factorization: 2 3 × 3 × 7 × 13

Divisors & multiples

All divisors (32)
1 · 2 · 3 · 4 · 6 · 7 · 8 · 12 · 13 · 14 · 21 · 24 · 26 · 28 · 39 · 42 · 52 · 56 · 78 · 84 · 91 · 104 · 156 · 168 · 182 · 273 · 312 · 364 · 546 · 728 · 1092 · 2184
Aliquot sum (sum of proper divisors): 4,536
Factor pairs (a × b = 2,184)
1 × 2184
2 × 1092
3 × 728
4 × 546
6 × 364
7 × 312
8 × 273
12 × 182
13 × 168
14 × 156
21 × 104
24 × 91
26 × 84
28 × 78
39 × 56
42 × 52
First multiples
2,184 · 4,368 · 6,552 · 8,736 · 10,920 · 13,104 · 15,288 · 17,472 · 19,656 · 21,840

Representations

In words
two thousand one hundred eighty-four
Ordinal
2184th
Roman numeral
MMCLXXXIV
Binary
100010001000
Octal
4210
Hexadecimal
0x888
Base64
CIg=

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 2184, here are decompositions:

  • 5 + 2179 = 2184
  • 23 + 2161 = 2184
  • 31 + 2153 = 2184
  • 41 + 2143 = 2184
  • 43 + 2141 = 2184
  • 47 + 2137 = 2184
  • 53 + 2131 = 2184
  • 71 + 2113 = 2184

Showing the first eight; more decompositions exist.

Unicode codepoint
Arabic Raised Round Dot
U+0888
Modifier symbol (Sk)

UTF-8 encoding: E0 A2 88 (3 bytes).

Hex color
#000888
RGB(0, 8, 136)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.8.136.

Address
0.0.8.136
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.8.136

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