Compare 20399 vs 20663
| Property | 20399 | 20663 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 203991 | 206631 |
| Prime factorization | 20399 | 20663 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20399 | 1, 20663 |
| Number of properties | 6 | 7 |
| Additive primes | 1071st | 1081st |
| Chen primes | 1133rd | 1144th |
| Harmonic primes | 850th | |
| Isolated primes | 1614th | 1627th |
| Long primes | 886th | |
| Primes | 2305th | 2328th |
| Safe primes | 197th | |
| Sexy primes (2nd member) | 705th | |
| Ulam primes | 169th | |
| Roman numberals | ||
| Base 2 | 1001111101011112 | 1010000101101112 |
| Base 3 | 10002221123 | 10011000223 |
| Base 4 | 103322334 | 110023134 |
| Base 5 | 11230445 | 11301235 |
| Base 6 | 2342356 | 2353556 |
| Base 7 | 1133217 | 1141467 |
| Base 8 | 476578 | 502678 |
| Base 9 | 308759 | 313089 |
| Base 10 | 2039910 | 2066310 |
| Base 11 | 1436511 | 1458511 |
| Base 12 | b97b12 | bb5b12 |
| Base 13 | 939213 | 953613 |
| Base 14 | 761114 | 775d14 |
| Base 15 | 609e15 | 61c815 |
| Base 16 | 4faf16 | 50b716 |