2^48 = 281,474,976,710,656

2^10 =                      1,024 =  1 Kb
2^16 =                     65,536 = 64 Kb
2^20 =                  1,048,576 =  1 Mb
2^30 =              1,073,741,824 =  1 GB 
2^32 =              4,294,967,295 =  4 Gb
2^40 =          1,099,511,627,776 =  1 Tb
2^48 =        281,474,976,710,656 = 26,2144 Tb
2^50 =      1,125,899,906,842,624 =  1 Petabyte
2^60 =  1,152,921,504,606,846,976 =  1 Exabyte
2^64 = 18,446,744,073,709,551,616 = 16,777,216 Tb = 16,384 Pb = 16 Eb



2^10 =                      1,024 =  1 Kb
2^20 =                  1,048,576 =  1 Mb
2^30 =              1,073,741,824 =  1 GB 
2^40 =          1,099,511,627,776 =  1 Tb
2^50 =      1,125,899,906,842,624 =  1 Petabyte
2^60 =  1,152,921,504,606,846,976 =  1 Exabyte


https://en.wikipedia.org/wiki/Power_of_two
https://en.wikipedia.org/wiki/Byte