Compare 20981 vs 21059
| Property | 20981 | 21059 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 209811 | 210591 |
| Prime factorization | 20981 | 21059 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20981 | 1, 21059 |
| Number of properties | 5 | 7 |
| Additive primes | 1099th | |
| Chen primes | 1161st | 1165th |
| Good primes | 265th | |
| Harmonic primes | 870th | |
| Long primes | 901st | |
| Primes | 2359th | 2368th |
| Pythagorean primes | 1172nd | |
| Safe primes | 198th | |
| Twin primes (1st member) | 357th | 360th |
| Roman numberals | ||
| Base 2 | 1010001111101012 | 1010010010000112 |
| Base 3 | 10012100023 | 10012122223 |
| Base 4 | 110133114 | 110210034 |
| Base 5 | 11324115 | 11332145 |
| Base 6 | 2410456 | 2412556 |
| Base 7 | 1151127 | 1152537 |
| Base 8 | 507658 | 511038 |
| Base 9 | 317029 | 317889 |
| Base 10 | 2098110 | 2105910 |
| Base 11 | 1484411 | 1490511 |
| Base 12 | 1018512 | 1022b12 |
| Base 13 | 971c13 | 977c13 |
| Base 14 | 790914 | 796314 |
| Base 15 | 633b15 | 638e15 |
| Base 16 | 51f516 | 524316 |