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|---|---|---|---|---|
| Cardinal | four hundred twenty | |||
| Ordinal | 420th (four hundred twentieth) |
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| Factorization | 22× 3 × 5 × 7 | |||
| Greek numeral | ΥΚ´ | |||
| Roman numeral | CDXX | |||
| Binary | 1101001002 | |||
| Ternary | 1201203 | |||
| Quaternary | 122104 | |||
| Quinary | 31405 | |||
| Senary | 15406 | |||
| Octal | 6448 | |||
| Duodecimal | 2B012 | |||
| Hexadecimal | 1A416 | |||
| Vigesimal | 11020 | |||
| Base 36 | BO36 | |||
420 is the natural number following 419 and preceding 421.
420 is: