Compare 20899 vs 20906
| Property | 20899 | 20906 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 208991 | 21 × 104531 |
| Prime factorization | 20899 | 2 × 10453 |
| Divisors count | 2 | 4 |
| Divisors | 1, 20899 | 1, 2, 10453, 20906 |
| Number of properties | 10 | 1 |
| Chen primes | 1157th | |
| Cousin primes (1st member) | 356th | |
| Happy primes | 388th | |
| Harmonic primes | 862nd | |
| Long primes | 894th | |
| Lucky primes | 382nd | |
| Primes | 2351st | |
| Prime triplets (2nd member) | 174th | |
| Semiprimes | 5304th | |
| Super primes | 349th | |
| Twin primes (2nd member) | 356th | |
| Roman numberals | ||
| Base 2 | 1010001101000112 | 1010001101010102 |
| Base 3 | 10012000013 | 10012000223 |
| Base 4 | 110122034 | 110122224 |
| Base 5 | 11320445 | 11321115 |
| Base 6 | 2404316 | 2404426 |
| Base 7 | 1146347 | 1146447 |
| Base 8 | 506438 | 506528 |
| Base 9 | 316019 | 316089 |
| Base 10 | 2089910 | 2090610 |
| Base 11 | 1477a11 | 1478611 |
| Base 12 | 1011712 | 1012212 |
| Base 13 | 968813 | 969213 |
| Base 14 | 788b14 | 789414 |
| Base 15 | 62d415 | 62db15 |
| Base 16 | 51a316 | 51aa16 |