It is 2.81421906*108, though if you are retaining all the digits then the scientific notation offers little advantage.
9 cubes in exponent form = 93
101
9.03 × 107
4.6 × 101
6.3 × 101
100000 = 105
1.0 × 102 or 102
10 to the power 1
223
The standard form is 216 Exponent form is 2.16 x 102
78.654 E+03 = 78,654
43