What is the address space and addressability if:

A memory address is 13 bits, and there are 16 bits of data at each memory address?

There are 1024 memory addresses and the memory is byte-addressable?

There are 2048 memory addresses and the memory is 8KiB (810248 bits) in total?

A memory unit has 4KiB (410248 bits) of total storage and every bit has its own address?

The "address" input of a memory unit is 16 bits wide and the "data" input of the memory unit is 32 bits wide?