Numbers

Characteristics of numbers (The number of digits in the number, Sum of the digits, Sum of the digits, Reverse number, Binary number system, Hexadecimal number system, Parity of the number, Simplicity of the number, The square root, The factorial of the number, The sign of the number, The nearest multiple of 10, The nearest multiple of 100, Sine, Cosine, Tangent, The square of the number, Cubic root, Natural logarithm, Common logarithm, Base64, SHA1, MD5, Converting the number of seconds to da...