Compare 28813 vs 28821
| Property | 28813 | 28821 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 288131 | 31 × 131 × 7391 |
| Prime factorization | 28813 | 3 × 13 × 739 |
| Divisors count | 2 | 8 |
| Divisors | 1, 28813 | 1, 3, 13, 39, 739, 2217, 9607, 28821 |
| Number of properties | 6 | 0 |
| Cousin primes (1st member) | 457th | |
| Cuban primes 2 | 19th | |
| Isolated primes | 2223rd | |
| Primes | 3138th | |
| Pythagorean primes | 1560th | |
| Sexy primes (2nd member) | 923rd | |
| Roman numberals | ||
| Base 2 | 1110000100011012 | 1110000100101012 |
| Base 3 | 11101120113 | 11101121103 |
| Base 4 | 130020314 | 130021114 |
| Base 5 | 14102235 | 14102415 |
| Base 6 | 3412216 | 3412336 |
| Base 7 | 1500017 | 1500127 |
| Base 8 | 702158 | 702258 |
| Base 9 | 434649 | 434739 |
| Base 10 | 2881310 | 2882110 |
| Base 11 | 1a71411 | 1a72111 |
| Base 12 | 1481112 | 1481912 |
| Base 13 | 1016513 | 1017013 |
| Base 14 | a70114 | a70914 |
| Base 15 | 880d15 | 881615 |
| Base 16 | 708d16 | 709516 |