Number
224
224 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 8
- Digital root
- 8
- Palindrome
- No
- Divisor count
- 12
- σ(n) — sum of divisors
- 504
Primality
Prime factorization: 2 5 × 7
Divisors & multiples
Aliquot sum (sum of proper divisors):
280
Representations
- In words
- two hundred twenty-four
- Ordinal
- 224th
- Roman numeral
- CCXXIV
- Binary
- 11100000
- Octal
- 340
- Hexadecimal
- E0
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 224, here are decompositions:
- 13 + 211 = 224
- 31 + 193 = 224
- 43 + 181 = 224
- 61 + 163 = 224
- 67 + 157 = 224
- 73 + 151 = 224
- 97 + 127 = 224
Unicode codepoint
à
U+00E0
Lowercase letter (Ll)
UTF-8 encoding: C3 A0 (2 bytes).
Hex color
#0000E0
RGB(0, 0, 224)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.224.