Compare 9907 vs 9919
| Property | 9907 | 9919 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 99071 | 71 × 131 × 1091 |
| Prime factorization | 9907 | 7 × 13 × 109 |
| Divisors count | 2 | 8 |
| Divisors | 1, 9907 | 1, 7, 13, 91, 109, 763, 1417, 9919 |
| Number of properties | 4 | 0 |
| Harmonic primes | 445th | |
| Isolated primes | 815th | |
| Primes | 1222nd | |
| Sexy primes (2nd member) | 409th | |
| Roman numberals | ||
| Base 2 | 100110101100112 | 100110101111112 |
| Base 3 | 1111202213 | 1111211013 |
| Base 4 | 21223034 | 21223334 |
| Base 5 | 3041125 | 3041345 |
| Base 6 | 1135116 | 1135316 |
| Base 7 | 406127 | 406307 |
| Base 8 | 232638 | 232778 |
| Base 9 | 145279 | 145419 |
| Base 10 | 990710 | 991910 |
| Base 11 | 749711 | 74a811 |
| Base 12 | 589712 | 58a712 |
| Base 13 | 468113 | 469013 |
| Base 14 | 387914 | 388714 |
| Base 15 | 2e0715 | 2e1415 |
| Base 16 | 26b316 | 26bf16 |