Number
671
671 is a composite number, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 14
- Digital root
- 5
- Palindrome
- No
- Divisor count
- 4
- σ(n) — sum of divisors
- 744
Primality
Prime factorization: 11 × 61
Divisors & multiples
Aliquot sum (sum of proper divisors):
73
Representations
- In words
- six hundred seventy-one
- Ordinal
- 671st
- Roman numeral
- DCLXXI
- Binary
- 1010011111
- Octal
- 1237
- Hexadecimal
- 29F
Also seen as
Unicode codepoint
ʟ
U+029F
Lowercase letter (Ll)
UTF-8 encoding: CA 9F (2 bytes).
Hex color
#00029F
RGB(0, 2, 159)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.159.