1,500,000,000
It is: 500,000,000
(5)21 x (4)11 = (5)11 x (5)10 x (4)11 = (5)10 x (5 x 4)11 = (5)10 x (20)11 =(5)10 x 20 x (20)10 = 20 x (5 x 20)10 = 20 x (100)10 = 2 x (10)1 x (10)20 =2 x (10)21 = 2,000,000,000,000,000,000,000
10 to the 0 power is 10 and 5 to the 0 power is 5 so 10 multiplied by 5 equals 50.
2.8 x 109 = 2,800,000,000
X to the 9th power
8,862,000,000
1,500,000,000
It is: 500,000,000
4,730,000,000
8.23 x 10^9 is equal to 8,230,000,000.
173220192505318905.457564663
1,030,000,000==========
1.0 x 10-9 is 0.0000000010
0.5556
4.23 x 10 to the 9th power
1*10-9 = 0.000000001