Compare 81197 vs 81205
| Property | 81197 | 81205 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 811971 | 51 × 1091 × 1491 |
| Prime factorization | 81197 | 5 × 109 × 149 |
| Divisors count | 2 | 8 |
| Divisors | 1, 81197 | 1, 5, 109, 149, 545, 745, 16241, 81205 |
| Number of properties | 7 | 0 |
| Chen primes | 3594th | |
| Harmonic primes | 2998th | |
| Primes | 7947th | |
| Prime triplets (1st member) | 430th | |
| Pythagorean primes | 3961st | |
| Sexy primes (1st member) | 2066th | |
| Twin primes (1st member) | 1024th | |
| Roman numberals | ||
| Base 2 | 100111101001011012 | 100111101001101012 |
| Base 3 | 110101010223 | 110101011213 |
| Base 4 | 1033102314 | 1033103114 |
| Base 5 | 100442425 | 100443105 |
| Base 6 | 14235256 | 14235416 |
| Base 7 | 4555047 | 4555157 |
| Base 8 | 2364558 | 2364658 |
| Base 9 | 1333389 | 1333479 |
| Base 10 | 8119710 | 8120510 |
| Base 11 | 5600611 | 5601311 |
| Base 12 | 3aba512 | 3abb112 |
| Base 13 | 2ac5c13 | 2ac6713 |
| Base 14 | 2183b14 | 2184514 |
| Base 15 | 190d215 | 190da15 |
| Base 16 | 13d2d16 | 13d3516 |