Compare 20983 vs 20987
| Property | 20983 | 20987 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 209831 | 311 × 6771 |
| Prime factorization | 20983 | 31 × 677 |
| Divisors count | 2 | 4 |
| Divisors | 1, 20983 | 1, 31, 677, 20987 |
| Number of properties | 4 | 1 |
| Harmonic primes | 866th | |
| Long primes | 896th | |
| Primes | 2360th | |
| Semiprimes | 5323rd | |
| Twin primes (2nd member) | 357th | |
| Roman numberals | ||
| Base 2 | 1010001111101112 | 1010001111110112 |
| Base 3 | 10012100113 | 10012100223 |
| Base 4 | 110133134 | 110133234 |
| Base 5 | 11324135 | 11324225 |
| Base 6 | 2410516 | 2410556 |
| Base 7 | 1151147 | 1151217 |
| Base 8 | 507678 | 507738 |
| Base 9 | 317049 | 317089 |
| Base 10 | 2098310 | 2098710 |
| Base 11 | 1484611 | 1484a11 |
| Base 12 | 1018712 | 1018b12 |
| Base 13 | 972113 | 972513 |
| Base 14 | 790b14 | 791114 |
| Base 15 | 633d15 | 634215 |
| Base 16 | 51f716 | 51fb16 |