Compare 213881 vs 213891
| Property | 213881 | 213891 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 2138811 | 31 × 831 × 8591 |
| Prime factorization | 213881 | 3 × 83 × 859 |
| Divisors count | 2 | 8 |
| Divisors | 1, 213881 | 1, 3, 83, 249, 859, 2577, 71297, 213891 |
| Number of properties | 7 | 0 |
| Additive primes | 7735th | |
| Chen primes | 7979th | |
| Harmonic primes | 7158th | |
| Isolated primes | 14559th | |
| Primes | 19116th | |
| Pythagorean primes | 9544th | |
| Sexy primes (1st member) | 4533rd | |
| Roman numberals | ||
| Base 2 | 1101000011011110012 | 1101000011100000112 |
| Base 3 | 1012121011123 | 1012121012203 |
| Base 4 | 3100313214 | 3100320034 |
| Base 5 | 233210115 | 233210315 |
| Base 6 | 43301056 | 43301236 |
| Base 7 | 15503637 | 15504067 |
| Base 8 | 6415718 | 6416038 |
| Base 9 | 3553459 | 3553569 |
| Base 10 | 21388110 | 21389110 |
| Base 11 | 13676811 | 13677711 |
| Base 12 | a393512 | a394312 |
| Base 13 | 7647513 | 7648213 |
| Base 14 | 57d3314 | 57d3d14 |
| Base 15 | 4358b15 | 4359615 |
| Base 16 | 3437916 | 3438316 |