Compare 639949 vs 640069
| Property | 639949 | 640069 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6399491 | 6400691 |
| Prime factorization | 639949 | 640069 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639949 | 1, 640069 |
| Number of properties | 3 | 2 |
| Isolated primes | 40810th | 40820th |
| Primes | 52071st | 52083rd |
| Ulam primes | 3816th | |
| Roman numberals | ||
| Base 2 | 100111000011110011012 | 100111000100010001012 |
| Base 3 | 10121112112113 | 10121120000213 |
| Base 4 | 21300330314 | 21301010114 |
| Base 5 | 1304342445 | 1304402345 |
| Base 6 | 214144216 | 214151416 |
| Base 7 | 53035127 | 53040437 |
| Base 8 | 23417158 | 23421058 |
| Base 9 | 11747549 | 11750079 |
| Base 10 | 63994910 | 64006910 |
| Base 11 | 3a789211 | 3a799111 |
| Base 12 | 26a41112 | 26a4b112 |
| Base 13 | 19538b13 | 19545113 |
| Base 14 | 12930914 | 12939314 |
| Base 15 | c993415 | c99b415 |
| Base 16 | 9c3cd16 | 9c44516 |