15,000,000,000
15,000,000,000
15,000,027
It is 0.000000015
6,000,000,015
15,140,607,000
15,000,000,000,000.One billion is 1 with 9 zeroes or 1,000,000,000.So 15000 billion is 15,000,000,000,000 or simply 15 trillion.
I write 620 billion as 620 billion.
1,500,000,000= 1.5 X 109========
Sixteen point two billion is how I would write it.
To express 15 billion in standard form, you write it as (1.5 \times 10^{10}). This is because 15 billion is equal to 15,000,000,000, which can be simplified into this scientific notation format, indicating that the decimal point is moved 10 places to the left.
You write 3.56 billion as 3,560,000,000.
15