Number
442
442 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 10
- Digital root
- 1
- Palindrome
- No
- Divisor count
- 8
- σ(n) — sum of divisors
- 756
Primality
Prime factorization: 2 × 13 × 17
Divisors & multiples
Aliquot sum (sum of proper divisors):
314
Representations
- In words
- four hundred forty-two
- Ordinal
- 442nd
- Roman numeral
- CDXLII
- Binary
- 110111010
- Octal
- 672
- Hexadecimal
- 1BA
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 442, here are decompositions:
- 3 + 439 = 442
- 11 + 431 = 442
- 23 + 419 = 442
- 41 + 401 = 442
- 53 + 389 = 442
- 59 + 383 = 442
- 83 + 359 = 442
- 89 + 353 = 442
Showing the first eight; more decompositions exist.
Unicode codepoint
ƺ
U+01BA
Lowercase letter (Ll)
UTF-8 encoding: C6 BA (2 bytes).
Hex color
#0001BA
RGB(0, 1, 186)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.186.