80 (number)
80 (eighty) is an even number. It is divisible by 1, 2, 4, 5, 8, 10, 16, 20, 40, and 80. It comes after 79 and before 81.
| ||||
|---|---|---|---|---|
| Cardinal | eighty | |||
| Ordinal | 80th (eightieth) | |||
| Factorization | 24· 5 | |||
| Roman numeral | LXXX | |||
| Binary | 10100002 | |||
| Ternary | 22223 | |||
| Quaternary | 11004 | |||
| Quinary | 3105 | |||
| Senary | 2126 | |||
| Octal | 1208 | |||
| Duodecimal | 6812 | |||
| Hexadecimal | 5016 | |||
| Vigesimal | 4020 | |||
| Base 36 | 2836 | |||