Compare 1381 vs 1409
| Property | 1381 | 1409 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 13811 | 14091 |
| Prime factorization | 1381 | 1409 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1381 | 1, 1409 |
| Number of properties | 7 | 8 |
| Additive primes | 122nd | |
| Chen primes | 144th | 146th |
| Emirps | 64th | 66th |
| Isolated primes | 130th | 132nd |
| Long primes | 86th | |
| Primes | 221st | 223rd |
| Proth primes | 20th | |
| Pythagorean primes | 109th | 110th |
| Sophie germain primes | 46th | |
| Super primes | 48th | |
| Roman numberals | MCCCLXXXI | MCDIX |
| Base 2 | 101011001012 | 101100000012 |
| Base 3 | 12200113 | 12210123 |
| Base 4 | 1112114 | 1120014 |
| Base 5 | 210115 | 211145 |
| Base 6 | 102216 | 103056 |
| Base 7 | 40127 | 40527 |
| Base 8 | 25458 | 26018 |
| Base 9 | 18049 | 18359 |
| Base 10 | 138110 | 140910 |
| Base 11 | 104611 | 107111 |
| Base 12 | 97112 | 99512 |
| Base 13 | 82313 | 84513 |
| Base 14 | 70914 | 72914 |
| Base 15 | 62115 | 63e15 |
| Base 16 | 56516 | 58116 |