Compare 208138 vs 208139
| Property | 208138 | 208139 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 71 × 148671 | 2081391 |
| Prime factorization | 2 × 7 × 14867 | 208139 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 7, 14, 14867, 29734, 104069, 208138 | 1, 208139 |
| Number of properties | 0 | 5 |
| Additive primes | 7527th | |
| Chen primes | 7789th | |
| Long primes | 6978th | |
| Primes | 18647th | |
| Twin primes (1st member) | 2233rd | |
| Roman numberals | ||
| Base 2 | 1100101101000010102 | 1100101101000010112 |
| Base 3 | 1011201112113 | 1011201112123 |
| Base 4 | 3023100224 | 3023100234 |
| Base 5 | 231300235 | 231300245 |
| Base 6 | 42433346 | 42433356 |
| Base 7 | 15245507 | 15245517 |
| Base 8 | 6264128 | 6264138 |
| Base 9 | 3464549 | 3464559 |
| Base 10 | 20813810 | 20813910 |
| Base 11 | 13241711 | 13241811 |
| Base 12 | a054a12 | a054b12 |
| Base 13 | 7397813 | 7397913 |
| Base 14 | 55bd014 | 55bd114 |
| Base 15 | 41a0d15 | 41a0e15 |
| Base 16 | 32d0a16 | 32d0b16 |