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Number

1,144

1,144 is a composite number, even, a calendar year.

Abundant Number Year

Properties

Parity
Even
Digit count
4
Digit sum
10
Digital root
1
Palindrome
No
Divisor count
16
σ(n) — sum of divisors
2,520

Primality

Prime factorization: 2 3 × 11 × 13

Divisors & multiples

All divisors (16)
1 · 2 · 4 · 8 · 11 · 13 · 22 · 26 · 44 · 52 · 88 · 104 · 143 · 286 · 572 · 1144
Aliquot sum (sum of proper divisors): 1,376
Factor pairs (a × b = 1,144)
1 × 1144
2 × 572
4 × 286
8 × 143
11 × 104
13 × 88
22 × 52
26 × 44
First multiples
1,144 · 2,288 · 3,432 · 4,576 · 5,720 · 6,864 · 8,008 · 9,152 · 10,296 · 11,440

Representations

In words
one thousand one hundred forty-four
Ordinal
1144th
Roman numeral
MCXLIV
Binary
10001111000
Octal
2170
Hexadecimal
478

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1144, here are decompositions:

  • 41 + 1103 = 1144
  • 47 + 1097 = 1144
  • 53 + 1091 = 1144
  • 83 + 1061 = 1144
  • 113 + 1031 = 1144
  • 131 + 1013 = 1144
  • 167 + 977 = 1144
  • 173 + 971 = 1144

Showing the first eight; more decompositions exist.

Unicode codepoint
Ѹ
U+0478
Uppercase letter (Lu)

UTF-8 encoding: D1 B8 (2 bytes).

Lookup U+0478 on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#000478
RGB(0, 4, 120)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.120.