Compare 28917 vs 28921
| Property | 28917 | 28921 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 7 | 1 |
| Prime factorization | 35 × 71 × 171 | 289211 |
| Prime factorization | 3 × 3 × 3 × 3 × 3 × 7 × 17 | 28921 |
| Divisors count | 24 | 2 |
| Divisors | 1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 243, 357, 459, 567, 1071, 1377, 1701, 3213, 4131, 9639, 28917 | 1, 28921 |
| Number of properties | 0 | 6 |
| Isolated primes | 2233rd | |
| Lucky primes | 489th | |
| Primes | 3148th | |
| Pythagorean primes | 1565th | |
| Sexy primes (1st member) | 925th | |
| Sexy prime triplets (1st member) | 239th | |
| Roman numberals | ||
| Base 2 | 1110000111101012 | 1110000111110012 |
| Base 3 | 11102000003 | 11102000113 |
| Base 4 | 130033114 | 130033214 |
| Base 5 | 14111325 | 14111415 |
| Base 6 | 3415136 | 3415216 |
| Base 7 | 1502107 | 1502147 |
| Base 8 | 703658 | 703718 |
| Base 9 | 436009 | 436049 |
| Base 10 | 2891710 | 2892110 |
| Base 11 | 1a7a911 | 1a80211 |
| Base 12 | 1489912 | 148a112 |
| Base 13 | 1021513 | 1021913 |
| Base 14 | a77714 | a77b14 |
| Base 15 | 887c15 | 888115 |
| Base 16 | 70f516 | 70f916 |