Compare 20657 vs 20663
| Property | 20657 | 20663 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 71 × 131 × 2271 | 206631 |
| Prime factorization | 7 × 13 × 227 | 20663 |
| Divisors count | 8 | 2 |
| Divisors | 1, 7, 13, 91, 227, 1589, 2951, 20657 | 1, 20663 |
| Number of properties | 0 | 7 |
| Additive primes | 1081st | |
| Chen primes | 1144th | |
| Harmonic primes | 850th | |
| Isolated primes | 1627th | |
| Long primes | 886th | |
| Primes | 2328th | |
| Safe primes | 197th | |
| Roman numberals | ||
| Base 2 | 1010000101100012 | 1010000101101112 |
| Base 3 | 10011000023 | 10011000223 |
| Base 4 | 110023014 | 110023134 |
| Base 5 | 11301125 | 11301235 |
| Base 6 | 2353456 | 2353556 |
| Base 7 | 1141407 | 1141467 |
| Base 8 | 502618 | 502678 |
| Base 9 | 313029 | 313089 |
| Base 10 | 2065710 | 2066310 |
| Base 11 | 1457a11 | 1458511 |
| Base 12 | bb5512 | bb5b12 |
| Base 13 | 953013 | 953613 |
| Base 14 | 775714 | 775d14 |
| Base 15 | 61c215 | 61c815 |
| Base 16 | 50b116 | 50b716 |