Compare 8190 vs 8191
| Property | 8190 | 8191 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 5 | 1 |
| Total factors | 6 | 1 |
| Prime factorization | 21 × 32 × 51 × 71 × 131 | 81911 |
| Prime factorization | 2 × 3 × 3 × 5 × 7 × 13 | 8191 |
| Divisors count | 48 | 2 |
| Divisors | 1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 30, 35, 39, 42, 45, 63, 65, 70, 78, 90, 91, 105, 117, 126, 130, 182, 195, 210, 234, 273, 315, 390, 455, 546, 585, 630, 819, 910, 1170, 1365, 1638, 2730, 4095, 8190 | 1, 8191 |
| Number of properties | 0 | 10 |
| Additive primes | 503rd | |
| Chen primes | 552nd | |
| Class 1+ primes | 25th | |
| Harmonic primes | 377th | |
| Isolated primes | 675th | |
| Lucky primes | 186th | |
| Mersenne primes | 5th | |
| Pierpont primes of the 2nd kind | 25th | |
| Primes | 1028th | |
| Solinas primes | 76th | |
| Roman numberals | ||
| Base 2 | 11111111111102 | 11111111111112 |
| Base 3 | 1020201003 | 1020201013 |
| Base 4 | 13333324 | 13333334 |
| Base 5 | 2302305 | 2302315 |
| Base 6 | 1015306 | 1015316 |
| Base 7 | 326107 | 326117 |
| Base 8 | 177768 | 177778 |
| Base 9 | 122109 | 122119 |
| Base 10 | 819010 | 819110 |
| Base 11 | 617611 | 617711 |
| Base 12 | 48a612 | 48a712 |
| Base 13 | 396013 | 396113 |
| Base 14 | 2db014 | 2db114 |
| Base 15 | 266015 | 266115 |
| Base 16 | 1ffe16 | 1fff16 |