Compare 20147 vs 20157
| Property | 20147 | 20157 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 201471 | 31 × 67191 |
| Prime factorization | 20147 | 3 × 6719 |
| Divisors count | 2 | 4 |
| Divisors | 1, 20147 | 1, 3, 6719, 20157 |
| Number of properties | 7 | 1 |
| Chen primes | 1120th | |
| Cousin primes (2nd member) | 347th | |
| Happy primes | 379th | |
| Harmonic primes | 827th | |
| Primes | 2279th | |
| Prime triplets (2nd member) | 169th | |
| Semiprimes | 5119th | |
| Twin primes (1st member) | 344th | |
| Roman numberals | ||
| Base 2 | 1001110101100112 | 1001110101111012 |
| Base 3 | 10001220123 | 10001221203 |
| Base 4 | 103223034 | 103223314 |
| Base 5 | 11210425 | 11211125 |
| Base 6 | 2331356 | 2331536 |
| Base 7 | 1125117 | 1125247 |
| Base 8 | 472638 | 472758 |
| Base 9 | 305659 | 305769 |
| Base 10 | 2014710 | 2015710 |
| Base 11 | 1415611 | 1416511 |
| Base 12 | b7ab12 | b7b912 |
| Base 13 | 922a13 | 923713 |
| Base 14 | 74b114 | 74bb14 |
| Base 15 | 5e8215 | 5e8c15 |
| Base 16 | 4eb316 | 4ebd16 |