Compare 990642 vs 990649
| Property | 990642 | 990649 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 21 × 31 × 411 × 40271 | 111 × 900591 |
| Prime factorization | 2 × 3 × 41 × 4027 | 11 × 90059 |
| Divisors count | 16 | 4 |
| Divisors | 1, 2, 3, 6, 41, 82, 123, 246, 4027, 8054, 12081, 24162, 165107, 330214, 495321, 990642 | 1, 11, 90059, 990649 |
| Number of properties | 0 | 1 |
| Semiprimes | 208162nd | |
| Roman numberals | ||
| Base 2 | 111100011101101100102 | 111100011101101110012 |
| Base 3 | 12120222201103 | 12120222202013 |
| Base 4 | 33013123024 | 33013123214 |
| Base 5 | 2232000325 | 2232000445 |
| Base 6 | 331221506 | 331222016 |
| Base 7 | 112641127 | 112641227 |
| Base 8 | 36166628 | 36166718 |
| Base 9 | 17688139 | 17688219 |
| Base 10 | 99064210 | 99064910 |
| Base 11 | 61731411 | 61732011 |
| Base 12 | 3b935612 | 3b936112 |
| Base 13 | 288ba313 | 288baa13 |
| Base 14 | 1bb04214 | 1bb04914 |
| Base 15 | 1487cc15 | 1487d415 |
| Base 16 | f1db216 | f1db916 |