Compare 1378 vs 1381
| Property | 1378 | 1381 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 131 × 531 | 13811 |
| Prime factorization | 2 × 13 × 53 | 1381 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 13, 26, 53, 106, 689, 1378 | 1, 1381 |
| Number of properties | 0 | 7 |
| Additive primes | 122nd | |
| Chen primes | 144th | |
| Emirps | 64th | |
| Isolated primes | 130th | |
| Long primes | 86th | |
| Primes | 221st | |
| Pythagorean primes | 109th | |
| Roman numberals | MCCCLXXVIII | MCCCLXXXI |
| Base 2 | 101011000102 | 101011001012 |
| Base 3 | 12200013 | 12200113 |
| Base 4 | 1112024 | 1112114 |
| Base 5 | 210035 | 210115 |
| Base 6 | 102146 | 102216 |
| Base 7 | 40067 | 40127 |
| Base 8 | 25428 | 25458 |
| Base 9 | 18019 | 18049 |
| Base 10 | 137810 | 138110 |
| Base 11 | 104311 | 104611 |
| Base 12 | 96a12 | 97112 |
| Base 13 | 82013 | 82313 |
| Base 14 | 70614 | 70914 |
| Base 15 | 61d15 | 62115 |
| Base 16 | 56216 | 56516 |