Compare 639942 vs 639949
| Property | 639942 | 639949 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 31 × 1066571 | 6399491 |
| Prime factorization | 2 × 3 × 106657 | 639949 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 3, 6, 106657, 213314, 319971, 639942 | 1, 639949 |
| Number of properties | 0 | 3 |
| Isolated primes | 40810th | |
| Primes | 52071st | |
| Ulam primes | 3816th | |
| Roman numberals | ||
| Base 2 | 100111000011110001102 | 100111000011110011012 |
| Base 3 | 10121112111203 | 10121112112113 |
| Base 4 | 21300330124 | 21300330314 |
| Base 5 | 1304342325 | 1304342445 |
| Base 6 | 214144106 | 214144216 |
| Base 7 | 53035027 | 53035127 |
| Base 8 | 23417068 | 23417158 |
| Base 9 | 11747469 | 11747549 |
| Base 10 | 63994210 | 63994910 |
| Base 11 | 3a788611 | 3a789211 |
| Base 12 | 26a40612 | 26a41112 |
| Base 13 | 19538413 | 19538b13 |
| Base 14 | 12930214 | 12930914 |
| Base 15 | c992c15 | c993415 |
| Base 16 | 9c3c616 | 9c3cd16 |