Compare 686138 vs 686143
| Property | 686138 | 686143 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 531 × 64731 | 6861431 |
| Prime factorization | 2 × 53 × 6473 | 686143 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 53, 106, 6473, 12946, 343069, 686138 | 1, 686143 |
| Number of properties | 0 | 3 |
| Primes | 55522nd | |
| Sexy primes (1st member) | 11936th | |
| Twin primes (2nd member) | 5976th | |
| Roman numberals | ||
| Base 2 | 101001111000001110102 | 101001111000001111112 |
| Base 3 | 10212120121123 | 10212120122013 |
| Base 4 | 22132003224 | 22132003334 |
| Base 5 | 1334240235 | 1334240335 |
| Base 6 | 224123226 | 224123316 |
| Base 7 | 55552557 | 55552637 |
| Base 8 | 24740728 | 24740778 |
| Base 9 | 12551759 | 12551819 |
| Base 10 | 68613810 | 68614310 |
| Base 11 | 42956211 | 42956711 |
| Base 12 | 2910a212 | 2910a712 |
| Base 13 | 1b03cb13 | 1b040313 |
| Base 14 | 13c09c14 | 13c0a314 |
| Base 15 | d847815 | d847d15 |
| Base 16 | a783a16 | a783f16 |