Number
342
342 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 9
- Digital root
- 9
- Palindrome
- No
- Divisor count
- 12
- σ(n) — sum of divisors
- 780
Primality
Prime factorization: 2 × 3 2 × 19
Divisors & multiples
Aliquot sum (sum of proper divisors):
438
Representations
- In words
- three hundred forty-two
- Ordinal
- 342nd
- Roman numeral
- CCCXLII
- Binary
- 101010110
- Octal
- 526
- Hexadecimal
- 156
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 342, here are decompositions:
- 5 + 337 = 342
- 11 + 331 = 342
- 29 + 313 = 342
- 31 + 311 = 342
- 59 + 283 = 342
- 61 + 281 = 342
- 71 + 271 = 342
- 73 + 269 = 342
Showing the first eight; more decompositions exist.
Unicode codepoint
Ŗ
U+0156
Uppercase letter (Lu)
UTF-8 encoding: C5 96 (2 bytes).
Hex color
#000156
RGB(0, 1, 86)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.86.