Compare 642639 vs 642642
| Property | 642639 | 642642 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 6 |
| Total factors | 2 | 6 |
| Prime factorization | 31 × 2142131 | 21 × 31 × 71 × 111 × 131 × 1071 |
| Prime factorization | 3 × 214213 | 2 × 3 × 7 × 11 × 13 × 107 |
| Divisors count | 4 | 64 |
| Divisors | 1, 3, 214213, 642639 | 1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 66, 77, 78, 91, 107, 143, 154, 182, 214, 231, 273, 286, 321, 429, 462, 546, 642, 749, 858, 1001, 1177, 1391, 1498, 2002, 2247, 2354, 2782, 3003, 3531, 4173, 4494, 6006, 7062, 8239, 8346, 9737, 15301, 16478, 19474, 24717, 29211, 30602, 45903, 49434, 58422, 91806, 107107, 214214, 321321, 642642 |
| Number of properties | 1 | 0 |
| Semiprimes | 137695th | |
| Roman numberals | ||
| Base 2 | 100111001110010011112 | 100111001110010100102 |
| Base 3 | 10121221121103 | 10121221121203 |
| Base 4 | 21303210334 | 21303211024 |
| Base 5 | 1310310245 | 1310310325 |
| Base 6 | 214351036 | 214351106 |
| Base 7 | 53144047 | 53144107 |
| Base 8 | 23471178 | 23471228 |
| Base 9 | 11784739 | 11784769 |
| Base 10 | 64263910 | 64264210 |
| Base 11 | 3a990811 | 3a991011 |
| Base 12 | 26ba9312 | 26ba9612 |
| Base 13 | 19667a13 | 19668013 |
| Base 14 | 12a2ab14 | 12a2b014 |
| Base 15 | ca62915 | ca62c15 |
| Base 16 | 9ce4f16 | 9ce5216 |