Compare 205416 vs 205421
| Property | 205416 | 205421 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 8 | 1 |
| Prime factorization | 23 × 34 × 3171 | 2054211 |
| Prime factorization | 2 × 2 × 2 × 3 × 3 × 3 × 3 × 317 | 205421 |
| Divisors count | 40 | 2 |
| Divisors | 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 317, 324, 634, 648, 951, 1268, 1902, 2536, 2853, 3804, 5706, 7608, 8559, 11412, 17118, 22824, 25677, 34236, 51354, 68472, 102708, 205416 | 1, 205421 |
| Number of properties | 0 | 10 |
| Chen primes | 7699th | |
| Cousin primes (2nd member) | 2181st | |
| Long primes | 6893rd | |
| Primes | 18416th | |
| Prime triplets (1st member) | 859th | |
| Prime triplets (2nd member) | 858th | |
| Pythagorean primes | 9197th | |
| Sexy primes (1st member) | 4382nd | |
| Sexy prime triplets (1st member) | 881st | |
| Twin primes (1st member) | 2208th | |
| Roman numberals | ||
| Base 2 | 1100100010011010002 | 1100100010011011012 |
| Base 3 | 1011022100003 | 1011022100123 |
| Base 4 | 3020212204 | 3020212314 |
| Base 5 | 230331315 | 230331415 |
| Base 6 | 42230006 | 42230056 |
| Base 7 | 15136117 | 15136167 |
| Base 8 | 6211508 | 6211558 |
| Base 9 | 3427009 | 3427059 |
| Base 10 | 20541610 | 20542110 |
| Base 11 | 13037211 | 13037711 |
| Base 12 | 9aa6012 | 9aa6512 |
| Base 13 | 7266313 | 7266813 |
| Base 14 | 54c0814 | 54c0d14 |
| Base 15 | 40ce615 | 40ceb15 |
| Base 16 | 3226816 | 3226d16 |