Compare 990307 vs 990309
| Property | 990307 | 990309 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 9903071 | 31 × 3301031 |
| Prime factorization | 990307 | 3 × 330103 |
| Divisors count | 2 | 4 |
| Divisors | 1, 990307 | 1, 3, 330103, 990309 |
| Number of properties | 4 | 1 |
| Chen primes | 29710th | |
| Isolated primes | 61591st | |
| Primes | 77798th | |
| Semiprimes | 208100th | |
| Sexy primes (1st member) | 16245th | |
| Roman numberals | ||
| Base 2 | 111100011100011000112 | 111100011100011001012 |
| Base 3 | 12120221100013 | 12120221100103 |
| Base 4 | 33013012034 | 33013012114 |
| Base 5 | 2231422125 | 2231422145 |
| Base 6 | 331204316 | 331204336 |
| Base 7 | 112631237 | 112631257 |
| Base 8 | 36161438 | 36161458 |
| Base 9 | 17684019 | 17684039 |
| Base 10 | 99030710 | 99030910 |
| Base 11 | 61703a11 | 61704111 |
| Base 12 | 3b911712 | 3b911912 |
| Base 13 | 2889a613 | 2889a813 |
| Base 14 | 1bac8314 | 1bac8514 |
| Base 15 | 14865715 | 14865915 |
| Base 16 | f1c6316 | f1c6516 |