Compare 121716 vs 121721
| Property | 121716 | 121721 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 8 | 1 |
| Prime factorization | 22 × 33 × 72 × 231 | 1217211 |
| Prime factorization | 2 × 2 × 3 × 3 × 3 × 7 × 7 × 23 | 121721 |
| Divisors count | 72 | 2 |
| Divisors | 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 27, 28, 36, 42, 46, 49, 54, 63, 69, 84, 92, 98, 108, 126, 138, 147, 161, 189, 196, 207, 252, 276, 294, 322, 378, 414, 441, 483, 588, 621, 644, 756, 828, 882, 966, 1127, 1242, 1323, 1449, 1764, 1932, 2254, 2484, 2646, 2898, 3381, 4347, 4508, 5292, 5796, 6762, 8694, 10143, 13524, 17388, 20286, 30429, 40572, 60858, 121716 | 1, 121721 |
| Number of properties | 0 | 6 |
| Chen primes | 4968th | |
| Harmonic primes | 4329th | |
| Isolated primes | 8579th | |
| Primes | 11456th | |
| Pythagorean primes | 5698th | |
| Sexy primes (1st member) | 2865th | |
| Roman numberals | ||
| Base 2 | 111011011011101002 | 111011011011110012 |
| Base 3 | 200112220003 | 200112220123 |
| Base 4 | 1312313104 | 1312313214 |
| Base 5 | 123433315 | 123433415 |
| Base 6 | 23353006 | 23353056 |
| Base 7 | 10146007 | 10146057 |
| Base 8 | 3555648 | 3555718 |
| Base 9 | 2048609 | 2048659 |
| Base 10 | 12171610 | 12172110 |
| Base 11 | 834a111 | 834a611 |
| Base 12 | 5a53012 | 5a53512 |
| Base 13 | 4352a13 | 4353213 |
| Base 14 | 3250014 | 3250514 |
| Base 15 | 260e615 | 260eb15 |
| Base 16 | 1db7416 | 1db7916 |