Compare 639757 vs 640007
| Property | 639757 | 640007 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6397571 | 6400071 |
| Prime factorization | 639757 | 640007 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639757 | 1, 640007 |
| Number of properties | 4 | 5 |
| Additive primes | 20345th | 20350th |
| Chen primes | 20369th | 20377th |
| Isolated primes | 40802nd | |
| Primes | 52061st | 52075th |
| Twin primes (1st member) | 5632nd | |
| Ulam primes | 3817th | |
| Roman numberals | ||
| Base 2 | 100111000011000011012 | 100111000100000001112 |
| Base 3 | 10121111202013 | 10121112202223 |
| Base 4 | 21300300314 | 21301000134 |
| Base 5 | 1304330125 | 1304400125 |
| Base 6 | 214135016 | 214145556 |
| Base 7 | 53031167 | 53036247 |
| Base 8 | 23414158 | 23420078 |
| Base 9 | 11745219 | 11748289 |
| Base 10 | 63975710 | 64000710 |
| Base 11 | 3a772811 | 3a793511 |
| Base 12 | 26a29112 | 26a45b12 |
| Base 13 | 19527113 | 19540413 |
| Base 14 | 12920d14 | 12934b14 |
| Base 15 | c985715 | c997215 |
| Base 16 | 9c30d16 | 9c40716 |