The short answer is one quadrillion.
The long answer is, there are 100 billion galaxies that we know of.
In them there are about 100 billion stars.
So 100b x 100b = every star in the night sky.
your welcome.
3,000,000,000 1,000,000,000 * ------------------- 3,000,000,000,000,000,000
2000 * 100 million = 200 billion.
40,000,000,000 (40 billion)
10 x (100 billion) = 1,000 billion = 1 trillion
40,000,000 multiplied by 2,500 is 100,000,000,000 (100 billion).
10 Trillion
3,000,000,000 1,000,000,000 * ------------------- 3,000,000,000,000,000,000
20,000,000,000,000,000,000,000
100 billion multiplied by 100 billion equals 10,000,000,000,000,000,000, or 10 quintillion. In numerical form, this is represented as (10^{20}).
2000 * 100 million = 200 billion.
40,000,000,000 (40 billion)
10 x (100 billion) = 1,000 billion = 1 trillion
40,000,000 multiplied by 2,500 is 100,000,000,000 (100 billion).
600 billion multiplied by 10 is 6,000,000,000,000
1,000 multiplied by 100,000,000 is 100,000,000,000 (100 billion).
2.119 multiplied by one hundred billion = 211,900,000,000
90 billion.