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| Cardinal | sixty-four | |||
| Ordinal | 64th (sixty-fourth) | |||
| Factorization | 26 | |||
| Divisors | 1, 2, 4, 8, 16, 32, 64 | |||
| Greek numeral | ΞΔ´ | |||
| Roman numeral | LXIV, lxiv | |||
| Binary | 10000002 | |||
| Ternary | 21013 | |||
| Senary | 1446 | |||
| Octal | 1008 | |||
| Duodecimal | 5412 | |||
| Hexadecimal | 4016 | |||
64 (sixty-four) is the natural number following 63 and preceding 65.
64 is a power of two, an interprime, a superperfect number, an Erdős–Woods number, a square and a cube.
In four dimensions, there are 64 convex uniform polychora aside from two infinite families of duoprisms and antiprismatic prisms, and 64 Bravais lattices.
64 is the atomic number of gadolinium.
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