Compare 28571 vs 28581
| Property | 28571 | 28581 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 285711 | 31 × 71 × 13611 |
| Prime factorization | 28571 | 3 × 7 × 1361 |
| Divisors count | 2 | 8 |
| Divisors | 1, 28571 | 1, 3, 7, 21, 1361, 4083, 9527, 28581 |
| Number of properties | 8 | 0 |
| Additive primes | 1418th | |
| Chen primes | 1508th | |
| Good primes | 318th | |
| Harmonic primes | 1161st | |
| Long primes | 1182nd | |
| Primes | 3108th | |
| Sophie germain primes | 429th | |
| Twin primes (1st member) | 455th | |
| Roman numberals | ||
| Base 2 | 1101111100110112 | 1101111101001012 |
| Base 3 | 11100120123 | 11100121203 |
| Base 4 | 123321234 | 123322114 |
| Base 5 | 14032415 | 14033115 |
| Base 6 | 3401356 | 3401536 |
| Base 7 | 1462047 | 1462207 |
| Base 8 | 676338 | 676458 |
| Base 9 | 431659 | 431769 |
| Base 10 | 2857110 | 2858110 |
| Base 11 | 1a51411 | 1a52311 |
| Base 12 | 1464b12 | 1465912 |
| Base 13 | 1000a13 | 1001713 |
| Base 14 | a5ab14 | a5b714 |
| Base 15 | 86eb15 | 870615 |
| Base 16 | 6f9b16 | 6fa516 |