Compare 28663 vs 28665
| Property | 28663 | 28665 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 4 |
| Total factors | 1 | 6 |
| Prime factorization | 286631 | 32 × 51 × 72 × 131 |
| Prime factorization | 28663 | 3 × 3 × 5 × 7 × 7 × 13 |
| Divisors count | 2 | 36 |
| Divisors | 1, 28663 | 1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 49, 63, 65, 91, 105, 117, 147, 195, 245, 273, 315, 441, 455, 585, 637, 735, 819, 1365, 1911, 2205, 3185, 4095, 5733, 9555, 28665 |
| Number of properties | 7 | 0 |
| Harmonic primes | 1167th | |
| Primes | 3123rd | |
| Prime triplets (3rd member) | 221st | |
| Sexy primes (1st member) | 919th | |
| Sexy primes (2nd member) | 918th | |
| Sexy prime triplets (2nd member) | 238th | |
| Twin primes (2nd member) | 457th | |
| Roman numberals | ||
| Base 2 | 1101111111101112 | 1101111111110012 |
| Base 3 | 11100221213 | 11100222003 |
| Base 4 | 123333134 | 123333214 |
| Base 5 | 14041235 | 14041305 |
| Base 6 | 3404116 | 3404136 |
| Base 7 | 1463657 | 1464007 |
| Base 8 | 677678 | 677718 |
| Base 9 | 432779 | 432809 |
| Base 10 | 2866310 | 2866510 |
| Base 11 | 1a59811 | 1a59a11 |
| Base 12 | 1470712 | 1470912 |
| Base 13 | 1007b13 | 1008013 |
| Base 14 | a63514 | a63714 |
| Base 15 | 875d15 | 876015 |
| Base 16 | 6ff716 | 6ff916 |