Compare 20399 vs 20409
| Property | 20399 | 20409 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 203991 | 31 × 68031 |
| Prime factorization | 20399 | 3 × 6803 |
| Divisors count | 2 | 4 |
| Divisors | 1, 20399 | 1, 3, 6803, 20409 |
| Number of properties | 6 | 1 |
| Additive primes | 1071st | |
| Chen primes | 1133rd | |
| Isolated primes | 1614th | |
| Primes | 2305th | |
| Semiprimes | 5179th | |
| Sexy primes (2nd member) | 705th | |
| Ulam primes | 169th | |
| Roman numberals | ||
| Base 2 | 1001111101011112 | 1001111101110012 |
| Base 3 | 10002221123 | 10002222203 |
| Base 4 | 103322334 | 103323214 |
| Base 5 | 11230445 | 11231145 |
| Base 6 | 2342356 | 2342536 |
| Base 7 | 1133217 | 1133347 |
| Base 8 | 476578 | 476718 |
| Base 9 | 308759 | 308869 |
| Base 10 | 2039910 | 2040910 |
| Base 11 | 1436511 | 1437411 |
| Base 12 | b97b12 | b98912 |
| Base 13 | 939213 | 939c13 |
| Base 14 | 761114 | 761b14 |
| Base 15 | 609e15 | 60a915 |
| Base 16 | 4faf16 | 4fb916 |