Compare 20399 vs 20639
| Property | 20399 | 20639 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 203991 | 206391 |
| Prime factorization | 20399 | 20639 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20399 | 1, 20639 |
| Number of properties | 6 | 4 |
| Additive primes | 1071st | |
| Chen primes | 1133rd | 1143rd |
| Happy primes | 384th | |
| Isolated primes | 1614th | |
| Primes | 2305th | 2326th |
| Sexy primes (2nd member) | 705th | |
| Twin primes (1st member) | 351st | |
| Ulam primes | 169th | |
| Roman numberals | ||
| Base 2 | 1001111101011112 | 1010000100111112 |
| Base 3 | 10002221123 | 10010221023 |
| Base 4 | 103322334 | 110021334 |
| Base 5 | 11230445 | 11300245 |
| Base 6 | 2342356 | 2353156 |
| Base 7 | 1133217 | 1141137 |
| Base 8 | 476578 | 502378 |
| Base 9 | 308759 | 312729 |
| Base 10 | 2039910 | 2063910 |
| Base 11 | 1436511 | 1456311 |
| Base 12 | b97b12 | bb3b12 |
| Base 13 | 939213 | 951813 |
| Base 14 | 761114 | 774314 |
| Base 15 | 609e15 | 61ae15 |
| Base 16 | 4faf16 | 509f16 |