Compare 87221 vs 87231
| Property | 87221 | 87231 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 872211 | 31 × 290771 |
| Prime factorization | 87221 | 3 × 29077 |
| Divisors count | 2 | 4 |
| Divisors | 1, 87221 | 1, 3, 29077, 87231 |
| Number of properties | 7 | 1 |
| Chen primes | 3802nd | |
| Harmonic primes | 3188th | |
| Long primes | 3201st | |
| Primes | 8469th | |
| Pythagorean primes | 4223rd | |
| Semiprimes | 20548th | |
| Sophie germain primes | 1055th | |
| Twin primes (1st member) | 1089th | |
| Roman numberals | ||
| Base 2 | 101010100101101012 | 101010100101111112 |
| Base 3 | 111021221023 | 111021222103 |
| Base 4 | 1111023114 | 1111023334 |
| Base 5 | 102423415 | 102424115 |
| Base 6 | 15114456 | 15115036 |
| Base 7 | 5122017 | 5122147 |
| Base 8 | 2522658 | 2522778 |
| Base 9 | 1425729 | 1425839 |
| Base 10 | 8722110 | 8723110 |
| Base 11 | 5a59211 | 5a5a111 |
| Base 12 | 4258512 | 4259312 |
| Base 13 | 3091413 | 3092113 |
| Base 14 | 23b0114 | 23b0b14 |
| Base 15 | 1ac9b15 | 1aca615 |
| Base 16 | 154b516 | 154bf16 |