Compare 1971 vs 1980
| Property | 1971 | 1980 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 4 |
| Total factors | 4 | 6 |
| Prime factorization | 33 × 731 | 22 × 32 × 51 × 111 |
| Prime factorization | 3 × 3 × 3 × 73 | 2 × 2 × 3 × 3 × 5 × 11 |
| Divisors count | 8 | 36 |
| Divisors | 1, 3, 9, 27, 73, 219, 657, 1971 | 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 |
| Number of properties | 0 | 0 |
| Roman numberals | MCMLXXI | MCMLXXX |
| Base 2 | 111101100112 | 111101111002 |
| Base 3 | 22010003 | 22011003 |
| Base 4 | 1323034 | 1323304 |
| Base 5 | 303415 | 304105 |
| Base 6 | 130436 | 131006 |
| Base 7 | 55147 | 55267 |
| Base 8 | 36638 | 36748 |
| Base 9 | 26309 | 26409 |
| Base 10 | 197110 | 198010 |
| Base 11 | 153211 | 154011 |
| Base 12 | 118312 | 119012 |
| Base 13 | b8813 | b9413 |
| Base 14 | a0b14 | a1614 |
| Base 15 | 8b615 | 8c015 |
| Base 16 | 7b316 | 7bc16 |