Compare 161987 vs 161989
| Property | 161987 | 161989 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 71 × 731 × 3171 | 231 × 70431 |
| Prime factorization | 7 × 73 × 317 | 23 × 7043 |
| Divisors count | 8 | 4 |
| Divisors | 1, 7, 73, 317, 511, 2219, 23141, 161987 | 1, 23, 7043, 161989 |
| Number of properties | 0 | 1 |
| Semiprimes | 37000th | |
| Roman numberals | ||
| Base 2 | 1001111000110000112 | 1001111000110001012 |
| Base 3 | 220200121123 | 220200121213 |
| Base 4 | 2132030034 | 2132030114 |
| Base 5 | 201404225 | 201404245 |
| Base 6 | 32455356 | 32455416 |
| Base 7 | 12431607 | 12431627 |
| Base 8 | 4743038 | 4743058 |
| Base 9 | 2661759 | 2661779 |
| Base 10 | 16198710 | 16198910 |
| Base 11 | 10078111 | 10078311 |
| Base 12 | 798ab12 | 798b112 |
| Base 13 | 5896713 | 5896913 |
| Base 14 | 4306714 | 4306914 |
| Base 15 | 32ee215 | 32ee415 |
| Base 16 | 278c316 | 278c516 |