Number
801
801 is a composite number, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 9
- Digital root
- 9
- Palindrome
- No
- Divisor count
- 6
- σ(n) — sum of divisors
- 1,170
Primality
Prime factorization: 3 2 × 89
Divisors & multiples
Aliquot sum (sum of proper divisors):
369
Representations
- In words
- eight hundred one
- Ordinal
- 801st
- Roman numeral
- DCCCI
- Binary
- 1100100001
- Octal
- 1441
- Hexadecimal
- 321
Also seen as
Unicode codepoint
̡
U+0321
Non-spacing mark (Mn)
UTF-8 encoding: CC A1 (2 bytes).
Hex color
#000321
RGB(0, 3, 33)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.33.