Compare 990173 vs 990181
| Property | 990173 | 990181 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 231 × 430511 | 9901811 |
| Prime factorization | 23 × 43051 | 990181 |
| Divisors count | 4 | 2 |
| Divisors | 1, 23, 43051, 990173 | 1, 990181 |
| Number of properties | 1 | 3 |
| Chen primes | 29707th | |
| Primes | 77789th | |
| Semiprimes | 208071st | |
| Twin primes (2nd member) | 8103rd | |
| Roman numberals | ||
| Base 2 | 111100011011110111012 | 111100011011111001012 |
| Base 3 | 12120220210023 | 12120220211013 |
| Base 4 | 33012331314 | 33012332114 |
| Base 5 | 2231411435 | 2231412115 |
| Base 6 | 331200456 | 331201016 |
| Base 7 | 112625427 | 112625537 |
| Base 8 | 36157358 | 36157458 |
| Base 9 | 17682329 | 17682419 |
| Base 10 | 99017310 | 99018110 |
| Base 11 | 616a2811 | 616a3511 |
| Base 12 | 3b902512 | 3b903112 |
| Base 13 | 28890213 | 28890a13 |
| Base 14 | 1babc914 | 1babd314 |
| Base 15 | 1485b815 | 1485c115 |
| Base 16 | f1bdd16 | f1be516 |