Compare 639949 vs 641747
| Property | 639949 | 641747 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6399491 | 6417471 |
| Prime factorization | 639949 | 641747 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639949 | 1, 641747 |
| Number of properties | 3 | 6 |
| Additive primes | 20403rd | |
| Chen primes | 20422nd | |
| Happy primes | 7432nd | |
| Isolated primes | 40810th | |
| Primes | 52071st | 52199th |
| Twin primes (1st member) | 5644th | |
| Ulam primes | 3816th | 3827th |
| Roman numberals | ||
| Base 2 | 100111000011110011012 | 100111001010110100112 |
| Base 3 | 10121112112113 | 10121210221023 |
| Base 4 | 21300330314 | 21302231034 |
| Base 5 | 1304342445 | 1310134425 |
| Base 6 | 214144216 | 214310156 |
| Base 7 | 53035127 | 53116617 |
| Base 8 | 23417158 | 23453238 |
| Base 9 | 11747549 | 11772729 |
| Base 10 | 63994910 | 64174710 |
| Base 11 | 3a789211 | 3a917711 |
| Base 12 | 26a41112 | 26b46b12 |
| Base 13 | 19538b13 | 19614213 |
| Base 14 | 12930914 | 129c3114 |
| Base 15 | c993415 | ca23215 |
| Base 16 | 9c3cd16 | 9cad316 |