Compare 990442 vs 990447
| Property | 990442 | 990447 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 4952211 | 31 × 3301491 |
| Prime factorization | 2 × 495221 | 3 × 330149 |
| Divisors count | 4 | 4 |
| Divisors | 1, 2, 495221, 990442 | 1, 3, 330149, 990447 |
| Number of properties | 1 | 1 |
| Semiprimes | 208123rd | 208125th |
| Roman numberals | ||
| Base 2 | 111100011100111010102 | 111100011100111011112 |
| Base 3 | 12120221220013 | 12120221220203 |
| Base 4 | 33013032224 | 33013032334 |
| Base 5 | 2231432325 | 2231432425 |
| Base 6 | 331212146 | 331212236 |
| Base 7 | 112634057 | 112634137 |
| Base 8 | 36163528 | 36163578 |
| Base 9 | 17685619 | 17685669 |
| Base 10 | 99044210 | 99044710 |
| Base 11 | 61715211 | 61715711 |
| Base 12 | 3b920a12 | 3b921312 |
| Base 13 | 288a7b13 | 288a8313 |
| Base 14 | 1bad3c14 | 1bad4314 |
| Base 15 | 1486e715 | 1486ec15 |
| Base 16 | f1cea16 | f1cef16 |