Compare 28911 vs 28921
| Property | 28911 | 28921 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 231 × 4191 | 289211 |
| Prime factorization | 3 × 23 × 419 | 28921 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 23, 69, 419, 1257, 9637, 28911 | 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 | 1110000111011112 | 1110000111110012 |
| Base 3 | 11101222103 | 11102000113 |
| Base 4 | 130032334 | 130033214 |
| Base 5 | 14111215 | 14111415 |
| Base 6 | 3415036 | 3415216 |
| Base 7 | 1502017 | 1502147 |
| Base 8 | 703578 | 703718 |
| Base 9 | 435839 | 436049 |
| Base 10 | 2891110 | 2892110 |
| Base 11 | 1a7a311 | 1a80211 |
| Base 12 | 1489312 | 148a112 |
| Base 13 | 1020c13 | 1021913 |
| Base 14 | a77114 | a77b14 |
| Base 15 | 887615 | 888115 |
| Base 16 | 70ef16 | 70f916 |