Compare 642849 vs 642853
| Property | 642849 | 642853 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 2142831 | 6428531 |
| Prime factorization | 3 × 214283 | 642853 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 214283, 642849 | 1, 642853 |
| Number of properties | 1 | 4 |
| Good primes | 1991st | |
| Isolated primes | 40970th | |
| Lucky primes | 6004th | |
| Primes | 52277th | |
| Semiprimes | 137744th | |
| Roman numberals | ||
| Base 2 | 100111001111001000012 | 100111001111001001012 |
| Base 3 | 10121222110203 | 10121222111013 |
| Base 4 | 21303302014 | 21303302114 |
| Base 5 | 1310323445 | 1310324035 |
| Base 6 | 214400536 | 214401016 |
| Base 7 | 53151247 | 53151317 |
| Base 8 | 23474418 | 23474458 |
| Base 9 | 11787369 | 11787419 |
| Base 10 | 64284910 | 64285310 |
| Base 11 | 3a9a8911 | 3a9a9211 |
| Base 12 | 27002912 | 27003112 |
| Base 13 | 1967ac13 | 1967b313 |
| Base 14 | 12a3bb14 | 12a3c114 |
| Base 15 | ca71915 | ca71d15 |
| Base 16 | 9cf2116 | 9cf2516 |