Compare 639985 vs 640011
| Property | 639985 | 640011 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 51 × 1279971 | 31 × 2133371 |
| Prime factorization | 5 × 127997 | 3 × 213337 |
| Divisors count | 4 | 4 |
| Divisors | 1, 5, 127997, 639985 | 1, 3, 213337, 640011 |
| Number of properties | 1 | 1 |
| Semiprimes | 137143rd | 137146th |
| Roman numberals | ||
| Base 2 | 100111000011111100012 | 100111000100000010112 |
| Base 3 | 10121112200113 | 10121112210103 |
| Base 4 | 21300333014 | 21301000234 |
| Base 5 | 1304344205 | 1304400215 |
| Base 6 | 214145216 | 214150036 |
| Base 7 | 53035637 | 53036317 |
| Base 8 | 23417618 | 23420138 |
| Base 9 | 11748049 | 11748339 |
| Base 10 | 63998510 | 64001110 |
| Base 11 | 3a791511 | 3a793911 |
| Base 12 | 26a44112 | 26a46312 |
| Base 13 | 1953b813 | 19540813 |
| Base 14 | 12933314 | 12935114 |
| Base 15 | c995a15 | c997615 |
| Base 16 | 9c3f116 | 9c40b16 |