How do you write 4.01xx10^0 into standard form?

I am not sure whether the number is complete or not (the exponent in particular) but the result should be $= 4.01$
This is because a number, such as $10$ to the power zero gives you $1$, so:
$4.01 \times {10}^{0} = 4.01 \times 1 = 4.01$