The notation "3.2E17" is a way of expressing numbers in scientific notation. The "E" stands for "exponent" and indicates that the number should be multiplied by 10 raised to the power of the number that follows it.
In this case, "3.2E17" means:
\[ 3.2 \times 10^{17} \]
To interpret this in standard form, you would move the decimal point 17 places to the right. This results in a very large number:
\[ 320,000,000,000,000,000 \]
Thus, "3.2E17" represents the number 320 quadrillion (320,000,000,000,000,000).