Number
389
389 is a prime, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 20
- Digital root
- 2
- Palindrome
- No
- Divisor count
- 2
- σ(n) — sum of divisors
- 390
Primality
389 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
Representations
- In words
- three hundred eighty-nine
- Ordinal
- 389th
- Roman numeral
- CCCLXXXIX
- Binary
- 110000101
- Octal
- 605
- Hexadecimal
- 185
Also seen as
Prime neighborhood
Unicode codepoint
ƅ
U+0185
Lowercase letter (Ll)
UTF-8 encoding: C6 85 (2 bytes).
Network port
TCP/UDP port 389 is the well-known port for LDAP — Lightweight Directory Access Protocol.
Hex color
#000185
RGB(0, 1, 133)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.133.