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Number

1,880

1,880 is a composite number, even, a calendar year.

Abundant Number Happy Number Year

Properties

Parity
Even
Digit count
4
Digit sum
17
Digital root
8
Palindrome
No
Divisor count
16
σ(n) — sum of divisors
4,320

Primality

Prime factorization: 2 3 × 5 × 47

Divisors & multiples

All divisors (16)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 40 · 47 · 94 · 188 · 235 · 376 · 470 · 940 · 1880
Aliquot sum (sum of proper divisors): 2,440
Factor pairs (a × b = 1,880)
1 × 1880
2 × 940
4 × 470
5 × 376
8 × 235
10 × 188
20 × 94
40 × 47
First multiples
1,880 · 3,760 · 5,640 · 7,520 · 9,400 · 11,280 · 13,160 · 15,040 · 16,920 · 18,800

Representations

In words
one thousand eight hundred eighty
Ordinal
1880th
Roman numeral
MDCCCLXXX
Binary
11101011000
Octal
3530
Hexadecimal
758

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1880, here are decompositions:

  • 3 + 1877 = 1880
  • 7 + 1873 = 1880
  • 13 + 1867 = 1880
  • 19 + 1861 = 1880
  • 79 + 1801 = 1880
  • 97 + 1783 = 1880
  • 103 + 1777 = 1880
  • 127 + 1753 = 1880

Showing the first eight; more decompositions exist.

Unicode codepoint
ݘ
U+0758
Other letter (Lo)

UTF-8 encoding: DD 98 (2 bytes).

Lookup U+0758 on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#000758
RGB(0, 7, 88)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.88.