number.wiki
Number

865

865 is a composite number, odd, a calendar year.

Deficient Number Squarefree Year

Properties

Parity
Odd
Digit count
3
Digit sum
19
Digital root
1
Palindrome
No
Divisor count
4
σ(n) — sum of divisors
1,044

Primality

Prime factorization: 5 × 173

Divisors & multiples

All divisors (4)
1 · 5 · 173 · 865
Aliquot sum (sum of proper divisors): 179
Factor pairs (a × b = 865)
1 × 865
5 × 173
First multiples
865 · 1,730 · 2,595 · 3,460 · 4,325 · 5,190 · 6,055 · 6,920 · 7,785 · 8,650

Representations

In words
eight hundred sixty-five
Ordinal
865th
Roman numeral
DCCCLXV
Binary
1101100001
Octal
1541
Hexadecimal
361

Also seen as

Unicode codepoint
͡
U+0361
Non-spacing mark (Mn)

UTF-8 encoding: CD A1 (2 bytes).

Code page identifier

Code page 865 is DOS Nordic — DOS code page for Nordic languages.

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

Hex color
#000361
RGB(0, 3, 97)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.97.