2.45 * 10^8 = 245,000,000
10^8 is a 1 with 8 zeros. 2.45 * 10^8 can be written as 2.45 * 100,000,000.
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4.03 times 10 to the power of 8 = 403,000,000
64.3 times 10 to the power of -8 in scientific notation is written as: 0.000000643
It is: (8*10^-3) divided by (5*10^-5) = 160
245 million written in scientific notation is 2.45 x 10^8. In scientific notation, a number is expressed as a coefficient multiplied by 10 raised to a certain power. In this case, 245 million is written as 2.45 (the coefficient) multiplied by 10 raised to the 8th power, as there are 8 zeros in a million.
5.799*10-8