10 3 x 10 9 July 8, 2019 16 32 64 128 10 3 x 10 9 as a single exponent 10 2 3 x 9 10 10 3 x 9 5 10 3 x 9 4 3 x 10 90 10 3 x 9 8 10 3 x 9 1 3 x 10 9 s in milliseconds 3 x 10 )= 99 3 x 10 9 bp 3 x 10^-9 seconds in milliseconds 1.1 x 10 3 )( 2.5 x 10 9 6.1 x 10 3 )( 8 x 10 9