Number
212
212 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 5
- Digital root
- 5
- Palindrome
- Yes
- Divisor count
- 6
- σ(n) — sum of divisors
- 378
Primality
Prime factorization: 2 2 × 53
Divisors & multiples
Aliquot sum (sum of proper divisors):
166
Representations
- In words
- two hundred twelve
- Ordinal
- 212th
- Roman numeral
- CCXII
- Binary
- 11010100
- Octal
- 324
- Hexadecimal
- D4
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 212, here are decompositions:
- 13 + 199 = 212
- 19 + 193 = 212
- 31 + 181 = 212
- 61 + 151 = 212
- 73 + 139 = 212
- 103 + 109 = 212
Unicode codepoint
Ô
U+00D4
Uppercase letter (Lu)
UTF-8 encoding: C3 94 (2 bytes).
Hex color
#0000D4
RGB(0, 0, 212)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.212.