Compare 990207 vs 990215
| Property | 990207 | 990215 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 32 × 1100231 | 51 × 1980431 |
| Prime factorization | 3 × 3 × 110023 | 5 × 198043 |
| Divisors count | 6 | 4 |
| Divisors | 1, 3, 9, 110023, 330069, 990207 | 1, 5, 198043, 990215 |
| Number of properties | 0 | 1 |
| Semiprimes | 208079th | |
| Roman numberals | ||
| Base 2 | 111100011011111111112 | 111100011100000001112 |
| Base 3 | 12120220221003 | 12120220221223 |
| Base 4 | 33012333334 | 33013000134 |
| Base 5 | 2231413125 | 2231413305 |
| Base 6 | 331201436 | 331201556 |
| Base 7 | 112626217 | 112626327 |
| Base 8 | 36157778 | 36160078 |
| Base 9 | 17682709 | 17682789 |
| Base 10 | 99020710 | 99021510 |
| Base 11 | 616a5911 | 616a6611 |
| Base 12 | 3b905312 | 3b905b12 |
| Base 13 | 28892a13 | 28893513 |
| Base 14 | 1bac1114 | 1bac1914 |
| Base 15 | 1485dc15 | 1485e515 |
| Base 16 | f1bff16 | f1c0716 |