Number
730
730 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
- 1,332
Primality
Prime factorization: 2 × 5 × 73
Divisors & multiples
Aliquot sum (sum of proper divisors):
602
Representations
- In words
- seven hundred thirty
- Ordinal
- 730th
- Roman numeral
- DCCXXX
- Binary
- 1011011010
- Octal
- 1332
- Hexadecimal
- 2DA
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 730, here are decompositions:
- 3 + 727 = 730
- 11 + 719 = 730
- 29 + 701 = 730
- 47 + 683 = 730
- 53 + 677 = 730
- 71 + 659 = 730
- 83 + 647 = 730
- 89 + 641 = 730
Showing the first eight; more decompositions exist.
Unicode codepoint
˚
U+02DA
Modifier symbol (Sk)
UTF-8 encoding: CB 9A (2 bytes).
Hex color
#0002DA
RGB(0, 2, 218)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.218.