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