To keep track of the shipping containers at a seaport, the government wants to utilize the RPID system to uniquely identify the containers at the port. Whenever a ship arrives at the port, an RFID tag will be assigned and attached to the container and will be removed before shipping it back to the sea. The port can store containers in a environment  of 120,000 m^2 with each container taking up 30 m^2 including the aisle allowance. At max, it is possible to stack up 5  containers on top of each other. 

How many containers can be stored at max in this port? How many decimal digits are required to uniquely identify all the containers? To purchase the RFID tags what storage capacity in bits do you need for this system?