Number
242
242 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 8
- Digital root
- 8
- Palindrome
- Yes
- Divisor count
- 6
- σ(n) — sum of divisors
- 399
Primality
Prime factorization: 2 × 11 2
Divisors & multiples
Aliquot sum (sum of proper divisors):
157
Representations
- In words
- two hundred forty-two
- Ordinal
- 242nd
- Roman numeral
- CCXLII
- Binary
- 11110010
- Octal
- 362
- Hexadecimal
- F2
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 242, here are decompositions:
- 3 + 239 = 242
- 13 + 229 = 242
- 19 + 223 = 242
- 31 + 211 = 242
- 43 + 199 = 242
- 61 + 181 = 242
- 79 + 163 = 242
- 103 + 139 = 242
Showing the first eight; more decompositions exist.
Unicode codepoint
ò
U+00F2
Lowercase letter (Ll)
UTF-8 encoding: C3 B2 (2 bytes).
Hex color
#0000F2
RGB(0, 0, 242)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.242.