8000000000 in Scientific Notation

8000000000 in scientific notation

8{,}000{,}000{,}000 = 8 \times 10^{9}

8000000000 in scientific notation is 8 × 10⁹ – the decimal point moves 9 places to the left, so the power of ten is 9.

  • E-notation: 8E+9 (calculators, Excel, programming)
  • Engineering notation: 8 × 10⁹ (the power is a multiple of 3)
  • Said aloud: eight times ten to the power of nine
  • Significant figures: 1 to 10 (the zeros at the end may or may not count)
  • Order of magnitude: \displaystyle 10^{9}
  • In the Indian system: 8,00,00,00,000 – eight hundred crore
  • In words: eight billion

Step-by-step solution

The problem

\text{Write } 8{,}000{,}000{,}000 \text{ in scientific notation}
1

Find the coefficient

a = 8

Scientific notation is \displaystyle a \times 10^{n} with \displaystyle 1 \le a < 10. Put the decimal point just after the first non-zero digit (8); the zeros at the end only hold places, so they are left out.

2

Count the places the decimal point moves

  1. 8,000,000,000
  2. 800,000,000
  3. 80,000,000
  4. 8,000,000
  5. 800,000
  6. 80,000
  7. 8000
  8. 800
  9. 80
  10. 8

From \displaystyle 8{,}000{,}000{,}000 to \displaystyle 8 the decimal point moves 9 places to the left.

3

Choose the sign of the exponent

n = 9

The number is 10 or more, so the point moved left and the exponent is positive: each place left divides by 10, and \displaystyle 10^{9} multiplies it back.

4

Write it in scientific notation

8{,}000{,}000{,}000 = \textcolor{#0b5c56}{8 \times 10^{9}}

Check

8 \times 10^{9} = 8 \times 1{,}000{,}000{,}000 = 8{,}000{,}000{,}000 \;\checkmark

Multiply the coefficient by the power of ten to get back the number.

The digits 8 at other powers of ten

Only the power changes when the decimal point moves – each place left is one more step of ten.

NumberScientific notationE-notation
8,0008 × 10³8E3
80,0008 × 10⁴8E4
800,0008 × 10⁵8E5
8,000,0008 × 10⁶8E6
80,000,0008 × 10⁷8E7
800,000,0008 × 10⁸8E8
8,000,000,0008 × 10⁹8E9

Other numbers × 10⁹

Try different values

Frequently asked questions

Is 80 × 10⁸ the same as 8 × 10⁹?

It has the same value, but it isn’t scientific notation: the number in front must be at least 1 and less than 10, and 80 is not. Move the point one more place and add 1 to the power: 8 × 10⁹.

Any other number – or multiplying, dividing, adding and subtracting in scientific notation – use the Scientific Notation Calculator.