Compare 12987 vs 12991
| Property | 12987 | 12991 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 33 × 131 × 371 | 111 × 11811 |
| Prime factorization | 3 × 3 × 3 × 13 × 37 | 11 × 1181 |
| Divisors count | 16 | 4 |
| Divisors | 1, 3, 9, 13, 27, 37, 39, 111, 117, 333, 351, 481, 999, 1443, 4329, 12987 | 1, 11, 1181, 12991 |
| Number of properties | 0 | 1 |
| Semiprimes | 3369th | |
| Roman numberals | ||
| Base 2 | 110010101110112 | 110010101111112 |
| Base 3 | 1222110003 | 1222110113 |
| Base 4 | 30223234 | 30223334 |
| Base 5 | 4034225 | 4034315 |
| Base 6 | 1400436 | 1400516 |
| Base 7 | 526027 | 526067 |
| Base 8 | 312738 | 312778 |
| Base 9 | 187309 | 187349 |
| Base 10 | 1298710 | 1299110 |
| Base 11 | 983711 | 984011 |
| Base 12 | 762312 | 762712 |
| Base 13 | 5bb013 | 5bb413 |
| Base 14 | 4a3914 | 4a3d14 |
| Base 15 | 3cac15 | 3cb115 |
| Base 16 | 32bb16 | 32bf16 |