Compare 990181 vs 990183
| Property | 990181 | 990183 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 9901811 | 31 × 3300611 |
| Prime factorization | 990181 | 3 × 330061 |
| Divisors count | 2 | 4 |
| Divisors | 1, 990181 | 1, 3, 330061, 990183 |
| Number of properties | 3 | 1 |
| Chen primes | 29707th | |
| Primes | 77789th | |
| Semiprimes | 208072nd | |
| Twin primes (2nd member) | 8103rd | |
| Roman numberals | ||
| Base 2 | 111100011011111001012 | 111100011011111001112 |
| Base 3 | 12120220211013 | 12120220211103 |
| Base 4 | 33012332114 | 33012332134 |
| Base 5 | 2231412115 | 2231412135 |
| Base 6 | 331201016 | 331201036 |
| Base 7 | 112625537 | 112625557 |
| Base 8 | 36157458 | 36157478 |
| Base 9 | 17682419 | 17682439 |
| Base 10 | 99018110 | 99018310 |
| Base 11 | 616a3511 | 616a3711 |
| Base 12 | 3b903112 | 3b903312 |
| Base 13 | 28890a13 | 28890c13 |
| Base 14 | 1babd314 | 1babd514 |
| Base 15 | 1485c115 | 1485c315 |
| Base 16 | f1be516 | f1be716 |