Compare 18947 vs 20663
| Property | 18947 | 20663 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 189471 | 206631 |
| Prime factorization | 18947 | 20663 |
| Divisors count | 2 | 2 |
| Divisors | 1, 18947 | 1, 20663 |
| Number of properties | 5 | 7 |
| Additive primes | 1007th | 1081st |
| Chen primes | 1068th | 1144th |
| Harmonic primes | 850th | |
| Isolated primes | 1502nd | 1627th |
| Long primes | 886th | |
| Primes | 2155th | 2328th |
| Safe primes | 185th | 197th |
| Roman numberals | ||
| Base 2 | 1001010000000112 | 1010000101101112 |
| Base 3 | 2212222023 | 10011000223 |
| Base 4 | 102200034 | 110023134 |
| Base 5 | 11012425 | 11301235 |
| Base 6 | 2234156 | 2353556 |
| Base 7 | 1061457 | 1141467 |
| Base 8 | 450038 | 502678 |
| Base 9 | 278829 | 313089 |
| Base 10 | 1894710 | 2066310 |
| Base 11 | 1326511 | 1458511 |
| Base 12 | ab6b12 | bb5b12 |
| Base 13 | 881613 | 953613 |
| Base 14 | 6c9514 | 775d14 |
| Base 15 | 593215 | 61c815 |
| Base 16 | 4a0316 | 50b716 |