Number

1,080

1,080 is a composite number, even, a calendar year.

Abundant Number Harshad / Niven Pentagonal Year

Properties

Parity: Even
Digit count: 4
Digit sum: 9
Digital root: 9
Palindrome: No
Divisor count: 32
σ(n) — sum of divisors: 3,600

Primality

Prime factorization: 2 ³ × 3 ³ × 5

Divisors & multiples

All divisors (32)

1 · 2 · 3 · 4 · 5 · 6 · 8 · 9 · 10 · 12 · 15 · 18 · 20 · 24 · 27 · 30 · 36 · 40 · 45 · 54 · 60 · 72 · 90 · 108 · 120 · 135 · 180 · 216 · 270 · 360 · 540 · 1080

Aliquot sum (sum of proper divisors): 2,520

Factor pairs (a × b = 1,080)

1 × 1080

2 × 540

3 × 360

4 × 270

5 × 216

6 × 180

8 × 135

9 × 120

10 × 108

12 × 90

15 × 72

18 × 60

20 × 54

24 × 45

27 × 40

30 × 36

First multiples

1,080 · 2,160 · 3,240 · 4,320 · 5,400 · 6,480 · 7,560 · 8,640 · 9,720 · 10,800

Representations

In words: one thousand eighty
Ordinal: 1080th
Roman numeral: MLXXX
Binary: 10000111000
Octal: 2070
Hexadecimal: 438

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1080, here are decompositions:

11 + 1069 = 1080
17 + 1063 = 1080
19 + 1061 = 1080
29 + 1051 = 1080
31 + 1049 = 1080
41 + 1039 = 1080
47 + 1033 = 1080
59 + 1021 = 1080

Showing the first eight; more decompositions exist.

Unicode codepoint

U+0438

Lowercase letter (Ll)

UTF-8 encoding: D0 B8 (2 bytes).

Lookup U+0438 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000438

RGB(0, 4, 56)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.56.