Number
40,009
40,009 is a prime, odd.
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 13
- Digital root
- 4
- Palindrome
- No
- Divisor count
- 2
- σ(n) — sum of divisors
- 40,010
Primality
40,009 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
First multiples
Representations
- In words
- forty thousand nine
- Ordinal
- 40009th
- Binary
- 1001110001001001
- Octal
- 116111
- Hexadecimal
- 9C49
Also seen as
Prime neighborhood
Unicode codepoint
鱉
U+9C49
Other letter (Lo)
UTF-8 encoding: E9 B1 89 (3 bytes).
Hex color
#009C49
RGB(0, 156, 73)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.156.73.