Number
397
397 is a prime, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 19
- Digital root
- 1
- Palindrome
- No
- Divisor count
- 2
- σ(n) — sum of divisors
- 398
Primality
397 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
Representations
- In words
- three hundred ninety-seven
- Ordinal
- 397th
- Roman numeral
- CCCXCVII
- Binary
- 110001101
- Octal
- 615
- Hexadecimal
- 18D
Also seen as
Prime neighborhood
Unicode codepoint
ƍ
U+018D
Lowercase letter (Ll)
UTF-8 encoding: C6 8D (2 bytes).
Hex color
#00018D
RGB(0, 1, 141)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.141.