20 (number)
| ||||
|---|---|---|---|---|
| Cardinal | twenty | |||
| Ordinal | 20th (twentieth) | |||
| Numeral system | vigesimal | |||
| Factorization | 22 × 5 | |||
| Divisors | 1, 2, 4, 5, 10, 20 | |||
| Greek numeral | Κ´ | |||
| Roman numeral | XX, xx | |||
| Binary | 101002 | |||
| Ternary | 2023 | |||
| Senary | 326 | |||
| Octal | 248 | |||
| Duodecimal | 1812 | |||
| Hexadecimal | 1416 | |||
| Armenian | Ի | |||
| Hebrew | כ / ך | |||
| Babylonian numeral | ⟪ | |||
| Egyptian hieroglyph | 𓎏 | |||
20 (twenty) is the natural number following 19 and preceding 21. A group of twenty units is sometimes referred to as a score.