Compare 661919 vs 661989
| Property | 661919 | 661989 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 6311 × 10491 | 31 × 2206631 |
| Prime factorization | 631 × 1049 | 3 × 220663 |
| Divisors count | 4 | 4 |
| Divisors | 1, 631, 1049, 661919 | 1, 3, 220663, 661989 |
| Number of properties | 1 | 1 |
| Semiprimes | 141640th | 141649th |
| Roman numberals | ||
| Base 2 | 101000011001100111112 | 101000011001111001012 |
| Base 3 | 10201212221123 | 10201220020103 |
| Base 4 | 22012121334 | 22012132114 |
| Base 5 | 1321401345 | 1321404245 |
| Base 6 | 221042356 | 221044336 |
| Base 7 | 54245367 | 54246667 |
| Base 8 | 24146378 | 24147458 |
| Base 9 | 12178759 | 12180639 |
| Base 10 | 66191910 | 66198910 |
| Base 11 | 41234511 | 4123a911 |
| Base 12 | 27b07b12 | 27b11912 |
| Base 13 | 1a238b13 | 1a241313 |
| Base 14 | 13331d14 | 13336d14 |
| Base 15 | d11ce15 | d122915 |
| Base 16 | a199f16 | a19e516 |