Compare 990101 vs 990123
| Property | 990101 | 990123 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 71 × 1414431 | 31 × 3300411 |
| Prime factorization | 7 × 141443 | 3 × 330041 |
| Divisors count | 4 | 4 |
| Divisors | 1, 7, 141443, 990101 | 1, 3, 330041, 990123 |
| Number of properties | 1 | 1 |
| Semiprimes | 208052nd | 208058th |
| Roman numberals | ||
| Base 2 | 111100011011100101012 | 111100011011101010112 |
| Base 3 | 12120220111023 | 12120220120203 |
| Base 4 | 33012321114 | 33012322234 |
| Base 5 | 2231404015 | 2231404435 |
| Base 6 | 331154456 | 331155236 |
| Base 7 | 112624107 | 112624417 |
| Base 8 | 36156258 | 36156538 |
| Base 9 | 17681429 | 17681669 |
| Base 10 | 99010110 | 99012310 |
| Base 11 | 61697211 | 61699211 |
| Base 12 | 3b8b8512 | 3b8ba312 |
| Base 13 | 28887813 | 28889413 |
| Base 14 | 1bab7714 | 1bab9114 |
| Base 15 | 14856b15 | 14858315 |
| Base 16 | f1b9516 | f1bab16 |