Compare 990131 vs 990161
| Property | 990131 | 990161 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 171 × 582431 | 431 × 230271 |
| Prime factorization | 17 × 58243 | 43 × 23027 |
| Divisors count | 4 | 4 |
| Divisors | 1, 17, 58243, 990131 | 1, 43, 23027, 990161 |
| Number of properties | 1 | 1 |
| Semiprimes | 208060th | 208069th |
| Roman numberals | ||
| Base 2 | 111100011011101100112 | 111100011011110100012 |
| Base 3 | 12120220121123 | 12120220201223 |
| Base 4 | 33012323034 | 33012331014 |
| Base 5 | 2231410115 | 2231411215 |
| Base 6 | 331155356 | 331200256 |
| Base 7 | 112624527 | 112625247 |
| Base 8 | 36156638 | 36157218 |
| Base 9 | 17681759 | 17682189 |
| Base 10 | 99013110 | 99016110 |
| Base 11 | 61699a11 | 616a1711 |
| Base 12 | 3b8bab12 | 3b901512 |
| Base 13 | 28889c13 | 2888c313 |
| Base 14 | 1bab9914 | 1babbb14 |
| Base 15 | 14858b15 | 1485ab15 |
| Base 16 | f1bb316 | f1bd116 |