524288 Bytes equals 512 Kilobytes
512
512 megabytes equates to 536,870,912 bytes.
I do not understand the question. You can buy parts that are 8 bits by 512 which is 512 bytes. Static RAM by it's nature is fairly self contained with little in additional circuits since it does not require refresh.
512 bytes
4800 bits is 600 bytes.
18 bytes is 144 bits.
72 bits is 9 bytes.
56 bits is 7 bytes.
two thousand bits No, there are 8 bits in a byte.
16777216 bits 2097152 bytes
2 bytes 8 bits in a byte