Compare 640147 vs 640149
| Property | 640147 | 640149 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 2771 × 23111 | 31 × 2133831 |
| Prime factorization | 277 × 2311 | 3 × 213383 |
| Divisors count | 4 | 4 |
| Divisors | 1, 277, 2311, 640147 | 1, 3, 213383, 640149 |
| Number of properties | 1 | 1 |
| Semiprimes | 137172nd | 137173rd |
| Roman numberals | ||
| Base 2 | 100111000100100100112 | 100111000100100101012 |
| Base 3 | 10121120100113 | 10121120100203 |
| Base 4 | 21301021034 | 21301021114 |
| Base 5 | 1304410425 | 1304410445 |
| Base 6 | 214153516 | 214153536 |
| Base 7 | 53042147 | 53042167 |
| Base 8 | 23422238 | 23422258 |
| Base 9 | 11751049 | 11751069 |
| Base 10 | 64014710 | 64014910 |
| Base 11 | 3a7a5211 | 3a7a5411 |
| Base 12 | 26a55712 | 26a55912 |
| Base 13 | 1954b113 | 1954b313 |
| Base 14 | 12940b14 | 12940d14 |
| Base 15 | c9a1715 | c9a1915 |
| Base 16 | 9c49316 | 9c49516 |