Compare 681830 vs 681839
| Property | 681830 | 681839 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 21 × 51 × 411 × 16631 | 6818391 |
| Prime factorization | 2 × 5 × 41 × 1663 | 681839 |
| Divisors count | 16 | 2 |
| Divisors | 1, 2, 5, 10, 41, 82, 205, 410, 1663, 3326, 8315, 16630, 68183, 136366, 340915, 681830 | 1, 681839 |
| Number of properties | 0 | 6 |
| Chen primes | 21550th | |
| Primes | 55204th | |
| Safe primes | 3177th | |
| Sexy primes (2nd member) | 11873rd | |
| Sophie germain primes | 5599th | |
| Twin primes (1st member) | 5949th | |
| Roman numberals | ||
| Base 2 | 101001100111011001102 | 101001100111011011112 |
| Base 3 | 10211220212223 | 10211220220223 |
| Base 4 | 22121312124 | 22121312334 |
| Base 5 | 1333043105 | 1333043245 |
| Base 6 | 223403426 | 223403556 |
| Base 7 | 55365627 | 55366047 |
| Base 8 | 24635468 | 24635578 |
| Base 9 | 12482589 | 12482689 |
| Base 10 | 68183010 | 68183910 |
| Base 11 | 4262a611 | 42630411 |
| Base 12 | 28a6b212 | 28a6bb12 |
| Base 13 | 1ab46613 | 1ab47213 |
| Base 14 | 13a6a214 | 13a6ab14 |
| Base 15 | d705515 | d705e15 |
| Base 16 | a676616 | a676f16 |