number.wiki
Number

503

503 is a prime, odd, a calendar year.

Cousin Prime Deficient Number Prime Sexy Prime Squarefree Year

Properties

Parity
Odd
Digit count
3
Digit sum
8
Digital root
8
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
504

Primality

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

Divisors & multiples

All divisors (2)
1 · 503
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 503)
1 × 503
First multiples
503 · 1,006 · 1,509 · 2,012 · 2,515 · 3,018 · 3,521 · 4,024 · 4,527 · 5,030

Representations

In words
five hundred three
Ordinal
503rd
Roman numeral
DIII
Binary
111110111
Octal
767
Hexadecimal
1F7

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 499 (gap of 4)
  • Next prime: 509 (gap of 6)

Pair status: cousin with 499, sexy with 509.

Unicode codepoint
Ƿ
U+01F7
Uppercase letter (Lu)

UTF-8 encoding: C7 B7 (2 bytes).

HTTP status code

HTTP 503 Service Unavailable — Server is temporarily unable to handle the request.

5xx class: Server Error.

Hex color
#0001F7
RGB(0, 1, 247)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.247.