Please explain each one, thank you.

An unsigned integer is stored in a computer in a format that uses 15 bits for this data type. What is the the maximum integer that can be stored in this format? An unsigned integer is stored in a computer in a format that uses 33 bits for this data type. What is the log (base 10) of the maximum integer that can be stored in this format? A signed integer is stored in a computer in a format that uses 31 bits for this data type. What is the log (base 10 ) of the maximum positive integer that can be stored in this format? A signed integer is stored in a computer in a format that uses 48 bits for this data type. What is the log (base 10) of the maximum positive integer that can be stored in this format