Compare 640126 vs 640149
| Property | 640126 | 640149 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 3200631 | 31 × 2133831 |
| Prime factorization | 2 × 320063 | 3 × 213383 |
| Divisors count | 4 | 4 |
| Divisors | 1, 2, 320063, 640126 | 1, 3, 213383, 640149 |
| Number of properties | 1 | 1 |
| Semiprimes | 137170th | 137173rd |
| Roman numberals | ||
| Base 2 | 100111000100011111102 | 100111000100100101012 |
| Base 3 | 10121120021013 | 10121120100203 |
| Base 4 | 21301013324 | 21301021114 |
| Base 5 | 1304410015 | 1304410445 |
| Base 6 | 214153146 | 214153536 |
| Base 7 | 53041547 | 53042167 |
| Base 8 | 23421768 | 23422258 |
| Base 9 | 11750719 | 11751069 |
| Base 10 | 64012610 | 64014910 |
| Base 11 | 3a7a3311 | 3a7a5411 |
| Base 12 | 26a53a12 | 26a55912 |
| Base 13 | 19549613 | 1954b313 |
| Base 14 | 1293d414 | 12940d14 |
| Base 15 | c9a0115 | c9a1915 |
| Base 16 | 9c47e16 | 9c49516 |