3.98 billion = 3 980 000 000
3.98 x 1011
398,014,001,000.
To write 398 hundreds, you can express it as 398 times 100, which equals 39,800. In numerical form, it is simply written as 39,800. Alternatively, you can also represent it as 3.98 x 10^4 in scientific notation.
I write 620 billion as 620 billion.
Sixteen point two billion is how I would write it.
3.98 x 1011
398,014,001,000.
I write 620 billion as 620 billion.
Sixteen point two billion is how I would write it.
three hundred ninety-eight.
You write 3.56 billion as 3,560,000,000.
40,300,000,000
In today's notation of Roman numerals: CCCXCVIII
398/100 or 199/50
As a number it is: 1,800,000,000 = 1.8 billion
Since you asked how I would write the number, the answer is 1031.
1,000 billion billion is: 1,000,000,000,000,000,000,000