Number
197
197 is a prime, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 17
- Digital root
- 8
- Palindrome
- No
- Divisor count
- 2
- σ(n) — sum of divisors
- 198
Primality
197 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
Representations
- In words
- one hundred ninety-seven
- Ordinal
- 197th
- Roman numeral
- CXCVII
- Binary
- 11000101
- Octal
- 305
- Hexadecimal
- C5
Also seen as
Prime neighborhood
Unicode codepoint
Å
U+00C5
Uppercase letter (Lu)
UTF-8 encoding: C3 85 (2 bytes).
Hex color
#0000C5
RGB(0, 0, 197)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.197.