Number
409
409 is a prime, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 13
- Digital root
- 4
- Palindrome
- No
- Divisor count
- 2
- σ(n) — sum of divisors
- 410
Primality
409 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
Representations
- In words
- four hundred nine
- Ordinal
- 409th
- Roman numeral
- CDIX
- Binary
- 110011001
- Octal
- 631
- Hexadecimal
- 199
Also seen as
Unicode codepoint
ƙ
U+0199
Lowercase letter (Ll)
UTF-8 encoding: C6 99 (2 bytes).
HTTP status code
HTTP 409 Conflict — Request conflicts with the current state of the resource.
4xx class: Client Error.
Hex color
#000199
RGB(0, 1, 153)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.153.