Give it a number and it will tell you many useful things about the number.

More features are added all the time.

Current features:
Full factorization
Prime factorization
Trigonometric ratios (sine cosine tangent)
Conversion to Binary Hexadecimal and Octal notation
Factorial computation
Square cube and every root up to the 10th root
Palindromic digit detection

Planned features:
Full equation evaluator
Derivatives and Integrals
Function graphs (y=f(x))
Function arithmetic (f(x)+g(x)=?)
Algebra solver
Arbitrary precision calculator (Infinite precision)
Full hardware acceleration for much more efficiency and speed