Compare 990215 vs 990217
| Property | 990215 | 990217 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 51 × 1980431 | 2831 × 34991 |
| Prime factorization | 5 × 198043 | 283 × 3499 |
| Divisors count | 4 | 4 |
| Divisors | 1, 5, 198043, 990215 | 1, 283, 3499, 990217 |
| Number of properties | 1 | 1 |
| Semiprimes | 208079th | 208080th |
| Roman numberals | ||
| Base 2 | 111100011100000001112 | 111100011100000010012 |
| Base 3 | 12120220221223 | 12120220222013 |
| Base 4 | 33013000134 | 33013000214 |
| Base 5 | 2231413305 | 2231413325 |
| Base 6 | 331201556 | 331202016 |
| Base 7 | 112626327 | 112626347 |
| Base 8 | 36160078 | 36160118 |
| Base 9 | 17682789 | 17682819 |
| Base 10 | 99021510 | 99021710 |
| Base 11 | 616a6611 | 616a6811 |
| Base 12 | 3b905b12 | 3b906112 |
| Base 13 | 28893513 | 28893713 |
| Base 14 | 1bac1914 | 1bac1b14 |
| Base 15 | 1485e515 | 1485e715 |
| Base 16 | f1c0716 | f1c0916 |