Compare 648631 vs 648640
| Property | 648631 | 648640 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 8 |
| Prime factorization | 6486311 | 26 × 51 × 20271 |
| Prime factorization | 648631 | 2 × 2 × 2 × 2 × 2 × 2 × 5 × 2027 |
| Divisors count | 2 | 28 |
| Divisors | 1, 648631 | 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2027, 4054, 8108, 10135, 16216, 20270, 32432, 40540, 64864, 81080, 129728, 162160, 324320, 648640 |
| Number of properties | 3 | 0 |
| Chen primes | 20619th | |
| Primes | 52722nd | |
| Twin primes (2nd member) | 5698th | |
| Roman numberals | ||
| Base 2 | 100111100101101101112 | 100111100101110000002 |
| Base 3 | 10122212021013 | 10122212022013 |
| Base 4 | 21321123134 | 21321130004 |
| Base 5 | 1312240115 | 1312240305 |
| Base 6 | 215225316 | 215225446 |
| Base 7 | 53410247 | 53410367 |
| Base 8 | 23626678 | 23627008 |
| Base 9 | 11876719 | 11876819 |
| Base 10 | 64863110 | 64864010 |
| Base 11 | 40336511 | 40337311 |
| Base 12 | 27344712 | 27345412 |
| Base 13 | 19930913 | 19931513 |
| Base 14 | 12c54b14 | 12c55614 |
| Base 15 | cc2c115 | cc2ca15 |
| Base 16 | 9e5b716 | 9e5c016 |