Number
742
742 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 13
- Digital root
- 4
- Palindrome
- No
- Divisor count
- 8
- σ(n) — sum of divisors
- 1,296
Primality
Prime factorization: 2 × 7 × 53
Divisors & multiples
Aliquot sum (sum of proper divisors):
554
Representations
- In words
- seven hundred forty-two
- Ordinal
- 742nd
- Roman numeral
- DCCXLII
- Binary
- 1011100110
- Octal
- 1346
- Hexadecimal
- 2E6
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 742, here are decompositions:
- 3 + 739 = 742
- 23 + 719 = 742
- 41 + 701 = 742
- 59 + 683 = 742
- 83 + 659 = 742
- 89 + 653 = 742
- 101 + 641 = 742
- 149 + 593 = 742
Showing the first eight; more decompositions exist.
Unicode codepoint
˦
U+02E6
Modifier symbol (Sk)
UTF-8 encoding: CB A6 (2 bytes).
Hex color
#0002E6
RGB(0, 2, 230)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.230.