number.wiki
Number

855

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

Deficient Number Year

Properties

Parity
Odd
Digit count
3
Digit sum
18
Digital root
9
Palindrome
No
Divisor count
12
σ(n) — sum of divisors
1,560

Primality

Prime factorization: 3 2 × 5 × 19

Divisors & multiples

All divisors (12)
1 · 3 · 5 · 9 · 15 · 19 · 45 · 57 · 95 · 171 · 285 · 855
Aliquot sum (sum of proper divisors): 705
Factor pairs (a × b = 855)
1 × 855
3 × 285
5 × 171
9 × 95
15 × 57
19 × 45
First multiples
855 · 1,710 · 2,565 · 3,420 · 4,275 · 5,130 · 5,985 · 6,840 · 7,695 · 8,550

Representations

In words
eight hundred fifty-five
Ordinal
855th
Roman numeral
DCCCLV
Binary
1101010111
Octal
1527
Hexadecimal
357

Also seen as

Unicode codepoint
͗
U+0357
Non-spacing mark (Mn)

UTF-8 encoding: CD 97 (2 bytes).

Code page identifier

Code page 855 is DOS Cyrillic — DOS code page for Cyrillic alphabets.

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

Hex color
#000357
RGB(0, 3, 87)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.87.