Number
143
143 is a composite number, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 8
- Digital root
- 8
- Palindrome
- No
- Divisor count
- 4
- σ(n) — sum of divisors
- 168
Primality
Prime factorization: 11 × 13
Divisors & multiples
Aliquot sum (sum of proper divisors):
25
Representations
- In words
- one hundred forty-three
- Ordinal
- 143rd
- Roman numeral
- CXLIII
- Binary
- 10001111
- Octal
- 217
- Hexadecimal
- 8F
Also seen as
Unicode codepoint
U+008F
Control character (Cc)
UTF-8 encoding: C2 8F (2 bytes).
Network port
TCP/UDP port 143 is the well-known port for IMAP — Internet Message Access Protocol.
Hex color
#00008F
RGB(0, 0, 143)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.143.