Compare 20981 vs 21101
| Property | 20981 | 21101 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 209811 | 211011 |
| Prime factorization | 20981 | 21101 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20981 | 1, 21101 |
| Number of properties | 5 | 8 |
| Additive primes | 1100th | |
| Chen primes | 1161st | 1166th |
| Good primes | 265th | |
| Happy primes | 392nd | |
| Isolated primes | 1653rd | |
| Long primes | 902nd | |
| Primes | 2359th | 2372nd |
| Pythagorean primes | 1172nd | 1178th |
| Sexy primes (1st member) | 718th | |
| Twin primes (1st member) | 357th | |
| Roman numberals | ||
| Base 2 | 1010001111101012 | 1010010011011012 |
| Base 3 | 10012100023 | 10012211123 |
| Base 4 | 110133114 | 110212314 |
| Base 5 | 11324115 | 11334015 |
| Base 6 | 2410456 | 2414056 |
| Base 7 | 1151127 | 1153437 |
| Base 8 | 507658 | 511558 |
| Base 9 | 317029 | 318459 |
| Base 10 | 2098110 | 2110110 |
| Base 11 | 1484411 | 1494311 |
| Base 12 | 1018512 | 1026512 |
| Base 13 | 971c13 | 97b213 |
| Base 14 | 790914 | 799314 |
| Base 15 | 633b15 | 63bb15 |
| Base 16 | 51f516 | 526d16 |