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Number

1,984

1,984 is a composite number, even, a calendar year.

Abundant Number Year

Properties

Parity
Even
Digit count
4
Digit sum
22
Digital root
4
Palindrome
No
Divisor count
14
σ(n) — sum of divisors
4,064

Primality

Prime factorization: 2 6 × 31

Divisors & multiples

All divisors (14)
1 · 2 · 4 · 8 · 16 · 31 · 32 · 62 · 64 · 124 · 248 · 496 · 992 · 1984
Aliquot sum (sum of proper divisors): 2,080
Factor pairs (a × b = 1,984)
1 × 1984
2 × 992
4 × 496
8 × 248
16 × 124
31 × 64
32 × 62
First multiples
1,984 · 3,968 · 5,952 · 7,936 · 9,920 · 11,904 · 13,888 · 15,872 · 17,856 · 19,840

Representations

In words
one thousand nine hundred eighty-four
Ordinal
1984th
Roman numeral
MCMLXXXIV
Binary
11111000000
Octal
3700
Hexadecimal
7C0

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1984, here are decompositions:

  • 5 + 1979 = 1984
  • 11 + 1973 = 1984
  • 53 + 1931 = 1984
  • 71 + 1913 = 1984
  • 83 + 1901 = 1984
  • 107 + 1877 = 1984
  • 113 + 1871 = 1984
  • 137 + 1847 = 1984

Showing the first eight; more decompositions exist.

Unicode codepoint
߀
U+07C0
Decimal digit (Nd)

UTF-8 encoding: DF 80 (2 bytes).

Lookup U+07C0 on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#0007C0
RGB(0, 7, 192)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.192.