Compare 20663 vs 21599
| Property | 20663 | 21599 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 206631 | 215991 |
| Prime factorization | 20663 | 21599 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20663 | 1, 21599 |
| Number of properties | 7 | 6 |
| Additive primes | 1081st | |
| Chen primes | 1144th | 1190th |
| Happy primes | 402nd | |
| Harmonic primes | 850th | 892nd |
| Isolated primes | 1627th | |
| Long primes | 886th | |
| Primes | 2328th | 2425th |
| Safe primes | 197th | 205th |
| Twin primes (1st member) | 368th | |
| Roman numberals | ||
| Base 2 | 1010000101101112 | 1010100010111112 |
| Base 3 | 10011000223 | 10021212223 |
| Base 4 | 110023134 | 111011334 |
| Base 5 | 11301235 | 11423445 |
| Base 6 | 2353556 | 2435556 |
| Base 7 | 1141467 | 1166547 |
| Base 8 | 502678 | 521378 |
| Base 9 | 313089 | 325589 |
| Base 10 | 2066310 | 2159910 |
| Base 11 | 1458511 | 1525611 |
| Base 12 | bb5b12 | 105bb12 |
| Base 13 | 953613 | 9aa613 |
| Base 14 | 775d14 | 7c2b14 |
| Base 15 | 61c815 | 65ee15 |
| Base 16 | 50b716 | 545f16 |