130 (number)
| ||||
|---|---|---|---|---|
| Cardinal | one hundred [and] thirty | |||
| Ordinal | th | |||
| Factorization | ||||
| Divisors | 1, 2, 5, 10, 13, 26, 65, 130 | |||
| Greek numeral | ΡΛ´ | |||
| Roman numeral | CXXX | |||
| Binary | 100000102 | |||
| Ternary | 112113 | |||
| Senary | 3346 | |||
| Octal | 2028 | |||
| Duodecimal | AA12 | |||
| Hexadecimal | 8216 | |||
130 (one hundred [and] thirty) is the natural number following 129 and preceding 131.
In mathematics
130 is a sphenic number. It is a noncototient since there is no answer to the equation x - φ(x) = 130.
130 is the only integer that is the sum of the squares of its first four divisors, including 1: 12 + 22 + 52 + 102 = 130.
130 is the largest number that cannot be written as the sum of four hexagonal numbers.[1]
In other fields
One hundred [and] thirty is also:
- The year AD130 or 130 BC
- The 130 nanometer process is a semiconductor process technology by semiconductor companies
- A 130-30 fund or a ratio up to 150/50 is a type of collective investment vehicle
- The C130 Hercules aircraft