Compare 639622 vs 639631
| Property | 639622 | 639631 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 21 × 3198111 | 6396311 |
| Prime factorization | 2 × 319811 | 639631 |
| Divisors count | 4 | 2 |
| Divisors | 1, 2, 319811, 639622 | 1, 639631 |
| Number of properties | 1 | 3 |
| Isolated primes | 40792nd | |
| Primes | 52047th | |
| Semiprimes | 137059th | |
| Sexy primes (1st member) | 11279th | |
| Roman numberals | ||
| Base 2 | 100111000010100001102 | 100111000010100011112 |
| Base 3 | 10121111012013 | 10121111020013 |
| Base 4 | 21300220124 | 21300220334 |
| Base 5 | 1304314425 | 1304320115 |
| Base 6 | 214131146 | 214131316 |
| Base 7 | 53025347 | 53025467 |
| Base 8 | 23412068 | 23412178 |
| Base 9 | 11743519 | 11743619 |
| Base 10 | 63962210 | 63963110 |
| Base 11 | 3a761511 | 3a762311 |
| Base 12 | 26a19a12 | 26a1a712 |
| Base 13 | 19519913 | 1951a513 |
| Base 14 | 12915414 | 12915d14 |
| Base 15 | c97b715 | c97c115 |
| Base 16 | 9c28616 | 9c28f16 |