Number System: Learn & Convert with Details is the best app for engineering, computer science and IT guys. In this app, you can easily convert an integer or fractional number into the binary, decimal, octal or hexadecimal system. It's not only an educative tool, it's also a calculator and conversion tool. Features of Number/Numeral System Converter ★ Convert binary (Integer or fractional) number into the decimal, octal or hexadecimal system. ★ Convert decimal (Integer or fractional) number int