Compare 661999 vs 662003
| Property | 661999 | 662003 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 131 × 509231 | 6620031 |
| Prime factorization | 13 × 50923 | 662003 |
| Divisors count | 4 | 2 |
| Divisors | 1, 13, 50923, 661999 | 1, 662003 |
| Number of properties | 1 | 5 |
| Additive primes | 20971st | |
| Isolated primes | 42129th | |
| Primes | 53718th | |
| Semiprimes | 141651st | |
| Sophie germain primes | 5463rd | |
| Ulam primes | 3942nd | |
| Roman numberals | ||
| Base 2 | 101000011001111011112 | 101000011001111100112 |
| Base 3 | 10201220021113 | 10201220021223 |
| Base 4 | 22012132334 | 22012133034 |
| Base 5 | 1321404445 | 1321410035 |
| Base 6 | 221044516 | 221044556 |
| Base 7 | 54250127 | 54250167 |
| Base 8 | 24147578 | 24147638 |
| Base 9 | 12180749 | 12180789 |
| Base 10 | 66199910 | 66200310 |
| Base 11 | 41240811 | 41241111 |
| Base 12 | 27b12712 | 27b12b12 |
| Base 13 | 1a242013 | 1a242413 |
| Base 14 | 13337914 | 13337d14 |
| Base 15 | d123415 | d123815 |
| Base 16 | a19ef16 | a19f316 |