Compare 28921 vs 28929
| Property | 28921 | 28929 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 289211 | 31 × 96431 |
| Prime factorization | 28921 | 3 × 9643 |
| Divisors count | 2 | 4 |
| Divisors | 1, 28921 | 1, 3, 9643, 28929 |
| Number of properties | 6 | 1 |
| Isolated primes | 2233rd | |
| Lucky primes | 489th | |
| Primes | 3148th | |
| Pythagorean primes | 1565th | |
| Semiprimes | 7194th | |
| Sexy primes (1st member) | 925th | |
| Sexy prime triplets (1st member) | 239th | |
| Roman numberals | ||
| Base 2 | 1110000111110012 | 1110001000000012 |
| Base 3 | 11102000113 | 11102001103 |
| Base 4 | 130033214 | 130100014 |
| Base 5 | 14111415 | 14112045 |
| Base 6 | 3415216 | 3415336 |
| Base 7 | 1502147 | 1502257 |
| Base 8 | 703718 | 704018 |
| Base 9 | 436049 | 436139 |
| Base 10 | 2892110 | 2892910 |
| Base 11 | 1a80211 | 1a80a11 |
| Base 12 | 148a112 | 148a912 |
| Base 13 | 1021913 | 1022413 |
| Base 14 | a77b14 | a78514 |
| Base 15 | 888115 | 888915 |
| Base 16 | 70f916 | 710116 |