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Number

163

163 is a prime, odd, a calendar year.

Cousin Prime Deficient Number Prime Sexy Prime Squarefree Year

Properties

Parity
Odd
Digit count
3
Digit sum
10
Digital root
1
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
164

Primality

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

Divisors & multiples

All divisors (2)
1 · 163
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 163)
1 × 163
First multiples
163 · 326 · 489 · 652 · 815 · 978 · 1,141 · 1,304 · 1,467 · 1,630

Representations

In words
one hundred sixty-three
Ordinal
163rd
Roman numeral
CLXIII
Binary
10100011
Octal
243
Hexadecimal
A3

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 157 (gap of 6)
  • Next prime: 167 (gap of 4)

Pair status: cousin with 167, sexy with 157.

Unicode codepoint
£
U+00A3
Currency symbol (Sc)

UTF-8 encoding: C2 A3 (2 bytes).

Lookup U+00A3 on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#0000A3
RGB(0, 0, 163)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.163.