Compare 990215 vs 990218
| Property | 990215 | 990218 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 51 × 1980431 | 21 × 4951091 |
| Prime factorization | 5 × 198043 | 2 × 495109 |
| Divisors count | 4 | 4 |
| Divisors | 1, 5, 198043, 990215 | 1, 2, 495109, 990218 |
| Number of properties | 1 | 1 |
| Semiprimes | 208079th | 208081st |
| Roman numberals | ||
| Base 2 | 111100011100000001112 | 111100011100000010102 |
| Base 3 | 12120220221223 | 12120220222023 |
| Base 4 | 33013000134 | 33013000224 |
| Base 5 | 2231413305 | 2231413335 |
| Base 6 | 331201556 | 331202026 |
| Base 7 | 112626327 | 112626357 |
| Base 8 | 36160078 | 36160128 |
| Base 9 | 17682789 | 17682829 |
| Base 10 | 99021510 | 99021810 |
| Base 11 | 616a6611 | 616a6911 |
| Base 12 | 3b905b12 | 3b906212 |
| Base 13 | 28893513 | 28893813 |
| Base 14 | 1bac1914 | 1bac1c14 |
| Base 15 | 1485e515 | 1485e815 |
| Base 16 | f1c0716 | f1c0a16 |