Compare 639949 vs 639997
| Property | 639949 | 639997 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6399491 | 6399971 |
| Prime factorization | 639949 | 639997 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639949 | 1, 639997 |
| Number of properties | 3 | 4 |
| Additive primes | 20349th | |
| Isolated primes | 40810th | 40813th |
| Lucky primes | 5977th | |
| Primes | 52071st | 52074th |
| Ulam primes | 3816th | |
| Roman numberals | ||
| Base 2 | 100111000011110011012 | 100111000011111111012 |
| Base 3 | 10121112112113 | 10121112201213 |
| Base 4 | 21300330314 | 21300333314 |
| Base 5 | 1304342445 | 1304344425 |
| Base 6 | 214144216 | 214145416 |
| Base 7 | 53035127 | 53036117 |
| Base 8 | 23417158 | 23417758 |
| Base 9 | 11747549 | 11748179 |
| Base 10 | 63994910 | 63999710 |
| Base 11 | 3a789211 | 3a792611 |
| Base 12 | 26a41112 | 26a45112 |
| Base 13 | 19538b13 | 1953c713 |
| Base 14 | 12930914 | 12934114 |
| Base 15 | c993415 | c996715 |
| Base 16 | 9c3cd16 | 9c3fd16 |