Number

880

880 is a composite number, even, a calendar year.

Abundant Number Harshad / Niven Year

Properties

Parity: Even
Digit count: 3
Digit sum: 16
Digital root: 7
Palindrome: No
Divisor count: 20
σ(n) — sum of divisors: 2,232

Primality

Prime factorization: 2 ⁴ × 5 × 11

Divisors & multiples

All divisors (20)

1 · 2 · 4 · 5 · 8 · 10 · 11 · 16 · 20 · 22 · 40 · 44 · 55 · 80 · 88 · 110 · 176 · 220 · 440 · 880

Aliquot sum (sum of proper divisors): 1,352

Factor pairs (a × b = 880)

1 × 880

2 × 440

4 × 220

5 × 176

8 × 110

10 × 88

11 × 80

16 × 55

20 × 44

22 × 40

First multiples

880 · 1,760 · 2,640 · 3,520 · 4,400 · 5,280 · 6,160 · 7,040 · 7,920 · 8,800

Representations

In words: eight hundred eighty
Ordinal: 880th
Roman numeral: DCCCLXXX
Binary: 1101110000
Octal: 1560
Hexadecimal: 370

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 880, here are decompositions:

3 + 877 = 880
17 + 863 = 880
23 + 857 = 880
41 + 839 = 880
53 + 827 = 880
59 + 821 = 880
71 + 809 = 880
83 + 797 = 880

Showing the first eight; more decompositions exist.

Unicode codepoint

U+0370

Uppercase letter (Lu)

UTF-8 encoding: CD B0 (2 bytes).

Lookup U+0370 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000370

RGB(0, 3, 112)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.112.

Possible US bank routing number

This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.

Routing number

000000880

Federal Reserve

United States Government

Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.

Look up 000000880 on FedACH ↗ Routing Number Lookup (Wise) ↗