Compare 20017 vs 20021
| Property | 20017 | 20021 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 371 × 5411 | 200211 |
| Prime factorization | 37 × 541 | 20021 |
| Divisors count | 4 | 2 |
| Divisors | 1, 37, 541, 20017 | 1, 20021 |
| Number of properties | 1 | 6 |
| Additive primes | 1051st | |
| Chen primes | 1113th | |
| Harmonic primes | 822nd | |
| Primes | 2264th | |
| Pythagorean primes | 1126th | |
| Semiprimes | 5086th | |
| Twin primes (1st member) | 343rd | |
| Roman numberals | ||
| Base 2 | 1001110001100012 | 1001110001101012 |
| Base 3 | 10001101013 | 10001101123 |
| Base 4 | 103203014 | 103203114 |
| Base 5 | 11200325 | 11200415 |
| Base 6 | 2324016 | 2324056 |
| Base 7 | 1122347 | 1122417 |
| Base 8 | 470618 | 470658 |
| Base 9 | 304119 | 304159 |
| Base 10 | 2001710 | 2002110 |
| Base 11 | 1404811 | 1405111 |
| Base 12 | b70112 | b70512 |
| Base 13 | 915a13 | 916113 |
| Base 14 | 741b14 | 742114 |
| Base 15 | 5de715 | 5deb15 |
| Base 16 | 4e3116 | 4e3516 |