Explanation:
a number consists of digits in the place of certain values of the powers of 10.
2013 consists of a digit 2 in the thousands units position.
of a digit 0 in the hundreds units position.
of a digit 1 in the tens units position.
and of a digit 3 in the (single) units position.
so, to which power do we need to have this 3 ?
I think you made a mistake there. you say we need it to the power of 2013 ?
3²⁰¹³ = 2.786671338...e960 =
= 2.786671338... × 10⁹⁶⁰