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| Cardinal | one hundred sixty-four | |||
| Ordinal | 164th (one hundred sixty-fourth) | |||
| Factorization | 22 × 41 | |||
| Divisors | 1, 2, 4, 41, 82, 164 | |||
| Greek numeral | ΡΞΔ´ | |||
| Roman numeral | CLXIV, clxiv | |||
| Binary | 101001002 | |||
| Ternary | 200023 | |||
| Senary | 4326 | |||
| Octal | 2448 | |||
| Duodecimal | 11812 | |||
| Hexadecimal | A416 | |||
164 (one hundred [and] sixty-four) is the natural number following 163 and preceding 165.
164 is a zero of the Mertens function.
In base 10, 164 is the smallest number that can be expressed as a concatenation of two squares in two different ways: as 1 concatenate 64 or 16 concatenate 4.