Compare 981 vs 987
| Property | 981 | 987 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 3 |
| Total factors | 3 | 3 |
| Prime factorization | 32 × 1091 | 31 × 71 × 471 |
| Prime factorization | 3 × 3 × 109 | 3 × 7 × 47 |
| Divisors count | 6 | 8 |
| Divisors | 1, 3, 9, 109, 327, 981 | 1, 3, 7, 21, 47, 141, 329, 987 |
| Number of properties | 0 | 0 |
| Roman numberals | CMLXXXI | CMLXXXVII |
| Base 2 | 11110101012 | 11110110112 |
| Base 3 | 11001003 | 11001203 |
| Base 4 | 331114 | 331234 |
| Base 5 | 124115 | 124225 |
| Base 6 | 43136 | 43236 |
| Base 7 | 26017 | 26107 |
| Base 8 | 17258 | 17338 |
| Base 9 | 13109 | 13169 |
| Base 10 | 98110 | 98710 |
| Base 11 | 81211 | 81811 |
| Base 12 | 69912 | 6a312 |
| Base 13 | 5a613 | 5ac13 |
| Base 14 | 50114 | 50714 |
| Base 15 | 45615 | 45c15 |
| Base 16 | 3d516 | 3db16 |