Compare 990170 vs 990181
| Property | 990170 | 990181 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 51 × 990171 | 9901811 |
| Prime factorization | 2 × 5 × 99017 | 990181 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 5, 10, 99017, 198034, 495085, 990170 | 1, 990181 |
| Number of properties | 0 | 3 |
| Chen primes | 29707th | |
| Primes | 77789th | |
| Twin primes (2nd member) | 8103rd | |
| Roman numberals | ||
| Base 2 | 111100011011110110102 | 111100011011111001012 |
| Base 3 | 12120220202223 | 12120220211013 |
| Base 4 | 33012331224 | 33012332114 |
| Base 5 | 2231411405 | 2231412115 |
| Base 6 | 331200426 | 331201016 |
| Base 7 | 112625367 | 112625537 |
| Base 8 | 36157328 | 36157458 |
| Base 9 | 17682289 | 17682419 |
| Base 10 | 99017010 | 99018110 |
| Base 11 | 616a2511 | 616a3511 |
| Base 12 | 3b902212 | 3b903112 |
| Base 13 | 2888cc13 | 28890a13 |
| Base 14 | 1babc614 | 1babd314 |
| Base 15 | 1485b515 | 1485c115 |
| Base 16 | f1bda16 | f1be516 |