Number
189
189 is a composite number, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 18
- Digital root
- 9
- Palindrome
- No
- Divisor count
- 8
- σ(n) — sum of divisors
- 320
Primality
Prime factorization: 3 3 × 7
Divisors & multiples
Aliquot sum (sum of proper divisors):
131
Representations
- In words
- one hundred eighty-nine
- Ordinal
- 189th
- Roman numeral
- CLXXXIX
- Binary
- 10111101
- Octal
- 275
- Hexadecimal
- BD
Also seen as
Unicode codepoint
½
U+00BD
Other number (No)
UTF-8 encoding: C2 BD (2 bytes).
Hex color
#0000BD
RGB(0, 0, 189)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.189.