Compare 661391 vs 661401
| Property | 661391 | 661401 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 4 |
| Prime factorization | 4211 × 15711 | 32 × 131 × 56531 |
| Prime factorization | 421 × 1571 | 3 × 3 × 13 × 5653 |
| Divisors count | 4 | 12 |
| Divisors | 1, 421, 1571, 661391 | 1, 3, 9, 13, 39, 117, 5653, 16959, 50877, 73489, 220467, 661401 |
| Number of properties | 1 | 0 |
| Semiprimes | 141519th | |
| Roman numberals | ||
| Base 2 | 101000010111100011112 | 101000010111100110012 |
| Base 3 | 10201210202223 | 10201210211003 |
| Base 4 | 22011320334 | 22011321214 |
| Base 5 | 1321310315 | 1321311015 |
| Base 6 | 221015556 | 221020136 |
| Base 7 | 54231537 | 54231667 |
| Base 8 | 24136178 | 24136318 |
| Base 9 | 12172289 | 12172409 |
| Base 10 | 66139110 | 66140110 |
| Base 11 | 411a0511 | 411a1411 |
| Base 12 | 27a8bb12 | 27a90912 |
| Base 13 | 1a207313 | 1a208013 |
| Base 14 | 13306314 | 13306d14 |
| Base 15 | d0e7b15 | d0e8615 |
| Base 16 | a178f16 | a179916 |