165 (number)
165 (one hundred sixty-five) is a whole number. It comes after 164 and before 166.
| ||||
|---|---|---|---|---|
| Cardinal | one hundred sixty-five | |||
| Ordinal | 165th (one hundred sixty-fifth) | |||
| Factorization | 3 × 5 × 11 | |||
| Divisors | 1, 3, 5, 11, 15, 33, 55, 165 | |||
| Greek numeral | ΡΞΕ´ | |||
| Roman numeral | CLXV | |||
| Binary | 101001012 | |||
| Ternary | 200103 | |||
| Quaternary | 22114 | |||
| Quinary | 11305 | |||
| Senary | 4336 | |||
| Octal | 2458 | |||
| Duodecimal | 11912 | |||
| Hexadecimal | A516 | |||
| Vigesimal | 8520 | |||
| Base 36 | 4L36 | |||
In mathematics
- 165 is a composite number. Its factors include 3, 5, and 11. 165 = 3 × 5 × 11.
- 165 is also a binomial coefficient. It is the number of ways to choose 3 objects from 11 (written as “11 choose 3”).
