Compare 642799 vs 642806
| Property | 642799 | 642806 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6427991 | 21 × 3214031 |
| Prime factorization | 642799 | 2 × 321403 |
| Divisors count | 2 | 4 |
| Divisors | 1, 642799 | 1, 2, 321403, 642806 |
| Number of properties | 4 | 1 |
| Additive primes | 20431st | |
| Lucky primes | 6003rd | |
| Primes | 52274th | |
| Semiprimes | 137737th | |
| Twin primes (2nd member) | 5654th | |
| Roman numberals | ||
| Base 2 | 100111001110111011112 | 100111001110111101102 |
| Base 3 | 10121222021013 | 10121222021223 |
| Base 4 | 21303232334 | 21303233124 |
| Base 5 | 1310321445 | 1310322115 |
| Base 6 | 214355316 | 214355426 |
| Base 7 | 53150237 | 53150337 |
| Base 8 | 23473578 | 23473668 |
| Base 9 | 11786719 | 11786789 |
| Base 10 | 64279910 | 64280610 |
| Base 11 | 3a9a4311 | 3a9a4a11 |
| Base 12 | 26bba712 | 26bbb212 |
| Base 13 | 19677113 | 19677813 |
| Base 14 | 12a38314 | 12a38a14 |
| Base 15 | ca6d415 | ca6db15 |
| Base 16 | 9ceef16 | 9cef616 |