Compare 208390 vs 208391
| Property | 208390 | 208391 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 5 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 21 × 51 × 71 × 131 × 2291 | 2083911 |
| Prime factorization | 2 × 5 × 7 × 13 × 229 | 208391 |
| Divisors count | 32 | 2 |
| Divisors | 1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 229, 455, 458, 910, 1145, 1603, 2290, 2977, 3206, 5954, 8015, 14885, 16030, 20839, 29770, 41678, 104195, 208390 | 1, 208391 |
| Number of properties | 0 | 6 |
| Additive primes | 7536th | |
| Chen primes | 7800th | |
| Cousin primes (2nd member) | 2213th | |
| Primes | 18669th | |
| Prime triplets (2nd member) | 868th | |
| Twin primes (1st member) | 2235th | |
| Roman numberals | ||
| Base 2 | 1100101110000001102 | 1100101110000001112 |
| Base 3 | 1011202120113 | 1011202120123 |
| Base 4 | 3023200124 | 3023200134 |
| Base 5 | 231320305 | 231320315 |
| Base 6 | 42444346 | 42444356 |
| Base 7 | 15253607 | 15253617 |
| Base 8 | 6270068 | 6270078 |
| Base 9 | 3467649 | 3467659 |
| Base 10 | 20839010 | 20839110 |
| Base 11 | 13262611 | 13262711 |
| Base 12 | a071a12 | a071b12 |
| Base 13 | 73b1013 | 73b1113 |
| Base 14 | 55d3014 | 55d3114 |
| Base 15 | 41b2a15 | 41b2b15 |
| Base 16 | 32e0616 | 32e0716 |