Number
1,209
1,209 is a composite number, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 12
- Digital root
- 3
- Palindrome
- No
- Divisor count
- 8
- σ(n) — sum of divisors
- 1,792
Primality
Prime factorization: 3 × 13 × 31
Divisors & multiples
Aliquot sum (sum of proper divisors):
583
First multiples
Representations
- In words
- one thousand two hundred nine
- Ordinal
- 1209th
- Roman numeral
- MCCIX
- Binary
- 10010111001
- Octal
- 2271
- Hexadecimal
- 4B9
Also seen as
Unicode codepoint
ҹ
U+04B9
Lowercase letter (Ll)
UTF-8 encoding: D2 B9 (2 bytes).
Hex color
#0004B9
RGB(0, 4, 185)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.185.