Compare 128991 vs 128999
| Property | 128991 | 128999 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 31 × 191 × 311 × 731 | 131 × 99231 |
| Prime factorization | 3 × 19 × 31 × 73 | 13 × 9923 |
| Divisors count | 16 | 4 |
| Divisors | 1, 3, 19, 31, 57, 73, 93, 219, 589, 1387, 1767, 2263, 4161, 6789, 42997, 128991 | 1, 13, 9923, 128999 |
| Number of properties | 0 | 1 |
| Semiprimes | 29812th | |
| Roman numberals | ||
| Base 2 | 111110111110111112 | 111110111111001112 |
| Base 3 | 201122211103 | 201122212023 |
| Base 4 | 1331331334 | 1331332134 |
| Base 5 | 131114315 | 131114445 |
| Base 6 | 24331036 | 24331156 |
| Base 7 | 10450327 | 10450437 |
| Base 8 | 3737378 | 3737478 |
| Base 9 | 2158439 | 2158529 |
| Base 10 | 12899110 | 12899910 |
| Base 11 | 88a0511 | 88a1211 |
| Base 12 | 6279312 | 6279b12 |
| Base 13 | 4693513 | 4694013 |
| Base 14 | 3501914 | 3502314 |
| Base 15 | 2834615 | 2834e15 |
| Base 16 | 1f7df16 | 1f7e716 |