Compare 28921 vs 28931
| Property | 28921 | 28931 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 289211 | 71 × 41331 |
| Prime factorization | 28921 | 7 × 4133 |
| Divisors count | 2 | 4 |
| Divisors | 1, 28921 | 1, 7, 4133, 28931 |
| Number of properties | 6 | 1 |
| Isolated primes | 2233rd | |
| Lucky primes | 489th | |
| Primes | 3148th | |
| Pythagorean primes | 1565th | |
| Semiprimes | 7195th | |
| Sexy primes (1st member) | 925th | |
| Sexy prime triplets (1st member) | 239th | |
| Roman numberals | ||
| Base 2 | 1110000111110012 | 1110001000000112 |
| Base 3 | 11102000113 | 11102001123 |
| Base 4 | 130033214 | 130100034 |
| Base 5 | 14111415 | 14112115 |
| Base 6 | 3415216 | 3415356 |
| Base 7 | 1502147 | 1502307 |
| Base 8 | 703718 | 704038 |
| Base 9 | 436049 | 436159 |
| Base 10 | 2892110 | 2893110 |
| Base 11 | 1a80211 | 1a81111 |
| Base 12 | 148a112 | 148ab12 |
| Base 13 | 1021913 | 1022613 |
| Base 14 | a77b14 | a78714 |
| Base 15 | 888115 | 888b15 |
| Base 16 | 70f916 | 710316 |