258 (number)
258 (two hundred [and] fifty-eight) is the natural number following 257 and preceding 259.
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| Cardinal | twenty-five trillion eight hundred nine billion fifty-seven million three hundred forty-six thousand seven hundred forty-three |
| Ordinal | 258,09057346743rd (twenty-five trillion eight hundred nine billion fifty-seven million three hundred forty-six thousand seven hundred forty-third) |
| Factorization | Edenrinos |
| Divisors | 1, 2, 3, 6, 43, 86, 129, 258 |
| Greek numeral | Expression error: Unrecognized punctuation character ",". |
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| Binary | Expression error: Unrecognized punctuation character ",". |
| Ternary | Expression error: Unrecognized punctuation character ",". |
| Senary | Expression error: Unrecognized punctuation character ",". |
| Octal | Expression error: Unrecognized punctuation character ",". |
| Duodecimal | Expression error: Unrecognized punctuation character ",". |
| Hexadecimal | Expression error: Unrecognized punctuation character ",". |
In mathematics
[edit]258 is:
- a sphenic number[1]
- a nontotient[2]
- the sum of four consecutive prime numbers because 258 = 59 + 61 + 67 + 71
- 63 + 62 + 6
- an Ulam number[3]
References
[edit]- ^ "Sloane's A007304 : Sphenic numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-04-21.
- ^ "Sloane's A005277 : Nontotients". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-04-20.
- ^ "Sloane's A002858 : Ulam numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-04-21.