Use APKPure App
Get Basecon old version APK for Android
Decimal to hex and binary converter w/adjustable word size and signed numbers.
This app allows to get instant conversion of decimal numbers to hexadecimal and binary.
You get the conversion as soon as you type the number.
You cand adjust the word size to your needs (8, 16, 32 or 64 bits).
So you dont get unwanted left digits.