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Number

1,993

1,993 is a prime, odd, a calendar year.

Cousin Prime Deficient Number Prime Sexy Prime Squarefree Year

Properties

Parity
Odd
Digit count
4
Digit sum
22
Digital root
4
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
1,994

Primality

1,993 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1993
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,993)
1 × 1993
First multiples
1,993 · 3,986 · 5,979 · 7,972 · 9,965 · 11,958 · 13,951 · 15,944 · 17,937 · 19,930

Representations

In words
one thousand nine hundred ninety-three
Ordinal
1993rd
Roman numeral
MCMXCIII
Binary
11111001001
Octal
3711
Hexadecimal
7C9

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 1,987 (gap of 6)
  • Next prime: 1,997 (gap of 4)

Pair status: cousin with 1997, sexy with 1987.

Unicode codepoint
߉
U+07C9
Decimal digit (Nd)

UTF-8 encoding: DF 89 (2 bytes).

Lookup U+07C9 on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#0007C9
RGB(0, 7, 201)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.201.