Number
213
213 is a composite number, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 6
- Digital root
- 6
- Palindrome
- No
- Divisor count
- 4
- σ(n) — sum of divisors
- 288
Primality
Prime factorization: 3 × 71
Divisors & multiples
Aliquot sum (sum of proper divisors):
75
Representations
- In words
- two hundred thirteen
- Ordinal
- 213th
- Roman numeral
- CCXIII
- Binary
- 11010101
- Octal
- 325
- Hexadecimal
- D5
Also seen as
Unicode codepoint
Õ
U+00D5
Uppercase letter (Lu)
UTF-8 encoding: C3 95 (2 bytes).
Hex color
#0000D5
RGB(0, 0, 213)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.213.