It is: 387 = CCCLXXXVII
10, 014, 387
387,000
0.387 = 387/1000
I write 620 billion as 620 billion.
3,000,387
It is: 3.87*10^2
Sixteen point two billion is how I would write it.
You write 3.56 billion as 3,560,000,000.
387.Standard notation is our regular system of writing numbers. So, 387 is already in standard notation! Other kinds of notation include scientific notation and expanded notation.
You can write 40.3 billion as 40,300,000,000.
24 and 3/16