Compare 19991 vs 30803
| Property | 19991 | 30803 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 199911 | 308031 |
| Prime factorization | 19991 | 30803 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19991 | 1, 30803 |
| Number of properties | 9 | 9 |
| Additive primes | 1049th | |
| Chen primes | 1111th | |
| Good primes | 331st | |
| Happy primes | 548th | |
| Harmonic primes | 820th | 1234th |
| Isolated primes | 2371st | |
| Palindromic primes | 46th | 51st |
| Primes | 2260th | 3320th |
| Prime triplets (1st member) | 168th | |
| Safe primes | 271st | |
| Sexy primes (1st member) | 693rd | 972nd |
| Sophie germain primes | 326th | |
| Twin primes (1st member) | 342nd | |
| Ulam primes | 253rd | |
| Roman numberals | ||
| Base 2 | 1001110000101112 | 1111000010100112 |
| Base 3 | 10001021023 | 11200202123 |
| Base 4 | 103201134 | 132011034 |
| Base 5 | 11144315 | 14412035 |
| Base 6 | 2323156 | 3543356 |
| Base 7 | 1121667 | 1555437 |
| Base 8 | 470278 | 741238 |
| Base 9 | 303729 | 462259 |
| Base 10 | 1999110 | 3080310 |
| Base 11 | 1402411 | 2116311 |
| Base 12 | b69b12 | 159ab12 |
| Base 13 | 913a13 | 1103613 |
| Base 14 | 73dd14 | b32314 |
| Base 15 | 5dcb15 | 91d815 |
| Base 16 | 4e1716 | 785316 |