130 (number)
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|---|---|---|---|---|
| Cardinal | one hundred thirty | |||
| Ordinal | 130th (one hundred thirtieth) |
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| Factorization | 2 × 5 × 13 | |||
| Divisors | 1, 2, 5, 10, 13, 26, 65, 130 | |||
| Roman numeral | CXXX | |||
| Binary | 100000102 | |||
| Ternary | 112113 | |||
| Quaternary | 20024 | |||
| Quinary | 10105 | |||
| Senary | 3346 | |||
| Octal | 2028 | |||
| Duodecimal | AA12 | |||
| Hexadecimal | 8216 | |||
| Vigesimal | 6A20 | |||
| Base 36 | 3M36 | |||
130 (one hundred [and] thirty) is the natural number following 129 and preceding 131.
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.
The Second Book of Chronicles says that Jehoiada died at the age of 130.
One hundred [and] thirty is also:
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Wikipedia