number.wiki
Number

863

863 is a prime, odd, a calendar year.

Cousin Prime Deficient Number Happy Number Prime Sexy Prime Squarefree Year

Properties

Parity
Odd
Digit count
3
Digit sum
17
Digital root
8
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
864

Primality

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

Divisors & multiples

All divisors (2)
1 · 863
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 863)
1 × 863
First multiples
863 · 1,726 · 2,589 · 3,452 · 4,315 · 5,178 · 6,041 · 6,904 · 7,767 · 8,630

Representations

In words
eight hundred sixty-three
Ordinal
863rd
Roman numeral
DCCCLXIII
Binary
1101011111
Octal
1537
Hexadecimal
35F

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 859 (gap of 4)
  • Next prime: 877 (gap of 14)

Pair status: cousin with 859.

Unicode codepoint
͟
U+035F
Non-spacing mark (Mn)

UTF-8 encoding: CD 9F (2 bytes).

Code page identifier

Code page 863 is DOS French Canadian — DOS code page for French Canadian.

Code pages are integer identifiers used by Windows and other systems to refer to specific character encodings.

Hex color
#00035F
RGB(0, 3, 95)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.95.