3 multiplied by 10 to the power of 13 is equal to 30,000,000,000,000 or 30 trillion. This is because raising 10 to the power of 13 means multiplying 10 by itself 13 times, resulting in a number with 13 zeros. Multiplying this by 3 gives you the final result of 30 trillion.
3x1013 is a fairly large number that it is best kept in
scientific notation - that makes it easier to read it, and compare
to other numbers. If you write it out, you get a 3, followed by 13
zeroes.
Well, darling, 3 times 10 to the power of 13 is 30 trillion. So, if you're planning on counting that high, you might want to grab a snack and get comfy because you're in for a long ride.