Compare 208131 vs 208139
| Property | 208131 | 208139 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 5 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 31 × 71 × 111 × 171 × 531 | 2081391 |
| Prime factorization | 3 × 7 × 11 × 17 × 53 | 208139 |
| Divisors count | 32 | 2 |
| Divisors | 1, 3, 7, 11, 17, 21, 33, 51, 53, 77, 119, 159, 187, 231, 357, 371, 561, 583, 901, 1113, 1309, 1749, 2703, 3927, 4081, 6307, 9911, 12243, 18921, 29733, 69377, 208131 | 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 | 1100101101000000112 | 1100101101000010112 |
| Base 3 | 1011201111203 | 1011201112123 |
| Base 4 | 3023100034 | 3023100234 |
| Base 5 | 231300115 | 231300245 |
| Base 6 | 42433236 | 42433356 |
| Base 7 | 15245407 | 15245517 |
| Base 8 | 6264038 | 6264138 |
| Base 9 | 3464469 | 3464559 |
| Base 10 | 20813110 | 20813910 |
| Base 11 | 13241011 | 13241811 |
| Base 12 | a054312 | a054b12 |
| Base 13 | 7397113 | 7397913 |
| Base 14 | 55bc714 | 55bd114 |
| Base 15 | 41a0615 | 41a0e15 |
| Base 16 | 32d0316 | 32d0b16 |