Compare 639971 vs 639983
| Property | 639971 | 639983 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 6831 × 9371 | 6399831 |
| Prime factorization | 683 × 937 | 639983 |
| Divisors count | 4 | 2 |
| Divisors | 1, 683, 937, 639971 | 1, 639983 |
| Number of properties | 1 | 4 |
| Chen primes | 20376th | |
| Happy primes | 7412th | |
| Isolated primes | 40812th | |
| Primes | 52073rd | |
| Semiprimes | 137140th | |
| Roman numberals | ||
| Base 2 | 100111000011111000112 | 100111000011111011112 |
| Base 3 | 10121112121223 | 10121112200023 |
| Base 4 | 21300332034 | 21300332334 |
| Base 5 | 1304343415 | 1304344135 |
| Base 6 | 214144556 | 214145156 |
| Base 7 | 53035437 | 53035617 |
| Base 8 | 23417438 | 23417578 |
| Base 9 | 11747789 | 11748029 |
| Base 10 | 63997110 | 63998310 |
| Base 11 | 3a790211 | 3a791311 |
| Base 12 | 26a42b12 | 26a43b12 |
| Base 13 | 1953a713 | 1953b613 |
| Base 14 | 12932314 | 12933114 |
| Base 15 | c994b15 | c995815 |
| Base 16 | 9c3e316 | 9c3ef16 |