Number
1,989
1,989 is a composite number, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 27
- Digital root
- 9
- Palindrome
- No
- Divisor count
- 12
- σ(n) — sum of divisors
- 3,276
Primality
Prime factorization: 3 2 × 13 × 17
Divisors & multiples
Aliquot sum (sum of proper divisors):
1,287
First multiples
Representations
- In words
- one thousand nine hundred eighty-nine
- Ordinal
- 1989th
- Roman numeral
- MCMLXXXIX
- Binary
- 11111000101
- Octal
- 3705
- Hexadecimal
- 7C5
Also seen as
Unicode codepoint
߅
U+07C5
Decimal digit (Nd)
UTF-8 encoding: DF 85 (2 bytes).
Hex color
#0007C5
RGB(0, 7, 197)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.197.