A 96-bit number in an RFID tag can be represented in a variety of ways, depending on the encoding scheme used.
If we assume that the number is encoded in binary (base 2), then it would require 96 bits or 12 bytes of storage space in the RFID tag.
However, if the number is encoded using a different base, such as hexadecimal (base 16) or decimal (base 10), then the number of bits required to store the number would be different. For example, if the number is encoded in hexadecimal, it would require 24 characters (each representing 4 bits), while in decimal it would require up to 20 characters.

It's also worth noting that not all RFID tags have the same storage capacity, so the amount of space available for storing a 96-bit number could vary depending on the specific tag being used.