number.wiki
Number

1,100

1,100 is a composite number, even, a calendar year.

Abundant Number Harshad / Niven Year

Properties

Parity
Even
Digit count
4
Digit sum
2
Digital root
2
Palindrome
No
Divisor count
18
σ(n) — sum of divisors
2,604

Primality

Prime factorization: 2 2 × 5 2 × 11

Divisors & multiples

All divisors (18)
1 · 2 · 4 · 5 · 10 · 11 · 20 · 22 · 25 · 44 · 50 · 55 · 100 · 110 · 220 · 275 · 550 · 1100
Aliquot sum (sum of proper divisors): 1,504
Factor pairs (a × b = 1,100)
1 × 1100
2 × 550
4 × 275
5 × 220
10 × 110
11 × 100
20 × 55
22 × 50
25 × 44
First multiples
1,100 · 2,200 · 3,300 · 4,400 · 5,500 · 6,600 · 7,700 · 8,800 · 9,900 · 11,000

Representations

In words
one thousand one hundred
Ordinal
1100th
Roman numeral
MC
Binary
10001001100
Octal
2114
Hexadecimal
44C

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1100, here are decompositions:

  • 3 + 1097 = 1100
  • 7 + 1093 = 1100
  • 13 + 1087 = 1100
  • 31 + 1069 = 1100
  • 37 + 1063 = 1100
  • 61 + 1039 = 1100
  • 67 + 1033 = 1100
  • 79 + 1021 = 1100

Showing the first eight; more decompositions exist.

Unicode codepoint
ь
U+044C
Lowercase letter (Ll)

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

Lookup U+044C on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#00044C
RGB(0, 4, 76)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.76.