Final answer:
The subnet number is 227.12.13.0, the broadcast address is 227.12.13.63, and the valid IP range is from 227.12.13.1 to 227.12.13.62.
Step-by-step explanation:
The subnet number is calculated by performing a bitwise logical AND operation between the IP address and the subnet mask. In this case, the subnet number is 227.12.13.0.
The broadcast address is obtained by flipping all the host bits to 1 in the subnet number. Therefore, the broadcast address is 227.12.13.63.
The valid IP range can be calculated by excluding the subnet number and the broadcast address from the total number of possible addresses in the subnet. In this case, the valid IP range is from 227.12.13.1 to 227.12.13.62.