1980 (number)
| ||||
|---|---|---|---|---|
| Cardinal | one thousand nine hundred eighty | |||
| Ordinal | 1980th (one thousand nine hundred eightieth) | |||
| Factorization | 22 × 32 × 5 × 11 | |||
| Divisors | 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980 | |||
| Greek numeral | ,ΑϠΠ´ | |||
| Roman numeral | MCMLXXX, mcmlxxx | |||
| Binary | 111101111002 | |||
| Ternary | 22011003 | |||
| Senary | 131006 | |||
| Octal | 36748 | |||
| Duodecimal | 119012 | |||
| Hexadecimal | 7BC16 | |||
1980 is the natural number following 1979 and preceding 1981.