Define a number self-composable if it may be computed using just the digits of the number itself (used just once) and the following operations:
- basic operations ( $+, -, \times, \div$)
- less than basic operations ($x^y, \;\sqrt x, \;x!, \;x.y$ (decimal point))
- extended operations ($.x, \; .\overline{x}$)
- parentheses at will
If the digits of the mathematical operation are in the same order as in the number itself, the number is said orderly self-composable.
For example, 25 is self-composable ($5^2 = 25$) and 343 is orderly self-composable, since $(3+4)^3 = 343$.
2016 is self-composable too: find how.