Compare 145717 vs 145721
| Property | 145717 | 145721 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 111 × 131 × 10191 | 1457211 |
| Prime factorization | 11 × 13 × 1019 | 145721 |
| Divisors count | 8 | 2 |
| Divisors | 1, 11, 13, 143, 1019, 11209, 13247, 145717 | 1, 145721 |
| Number of properties | 0 | 8 |
| Chen primes | 5795th | |
| Emirps | 2847th | |
| Harmonic primes | 5062nd | |
| Primes | 13484th | |
| Pythagorean primes | 6721st | |
| Sophie germain primes | 1600th | |
| Twin primes (1st member) | 1656th | |
| Ulam primes | 957th | |
| Roman numberals | ||
| Base 2 | 1000111001001101012 | 1000111001001110012 |
| Base 3 | 211012122213 | 211012200023 |
| Base 4 | 2032103114 | 2032103214 |
| Base 5 | 141303325 | 141303415 |
| Base 6 | 30423416 | 30423456 |
| Base 7 | 11445557 | 11445627 |
| Base 8 | 4344658 | 4344718 |
| Base 9 | 2417879 | 2418029 |
| Base 10 | 14571710 | 14572110 |
| Base 11 | 9a53011 | 9a53411 |
| Base 12 | 703b112 | 703b512 |
| Base 13 | 5143013 | 5143413 |
| Base 14 | 3b16514 | 3b16914 |
| Base 15 | 2d29715 | 2d29b15 |
| Base 16 | 2393516 | 2393916 |