Compare 639631 vs 639851
| Property | 639631 | 639851 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6396311 | 6398511 |
| Prime factorization | 639631 | 639851 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639631 | 1, 639851 |
| Number of properties | 3 | 6 |
| Chen primes | 20371st | |
| Isolated primes | 40792nd | |
| Primes | 52047th | 52064th |
| Prime triplets (1st member) | 2062nd | |
| Sexy primes (1st member) | 11279th | 11284th |
| Sophie germain primes | 5305th | |
| Twin primes (1st member) | 5631st | |
| Roman numberals | ||
| Base 2 | 100111000010100011112 | 100111000011011010112 |
| Base 3 | 10121111020013 | 10121112010123 |
| Base 4 | 21300220334 | 21300312234 |
| Base 5 | 1304320115 | 1304334015 |
| Base 6 | 214131316 | 214141356 |
| Base 7 | 53025467 | 53033127 |
| Base 8 | 23412178 | 23415538 |
| Base 9 | 11743619 | 11746359 |
| Base 10 | 63963110 | 63985110 |
| Base 11 | 3a762311 | 3a780311 |
| Base 12 | 26a1a712 | 26a34b12 |
| Base 13 | 1951a513 | 19531413 |
| Base 14 | 12915d14 | 12927914 |
| Base 15 | c97c115 | c98bb15 |
| Base 16 | 9c28f16 | 9c36b16 |