Number DigitDecimal in the billionths place
0.000423209 in Words
0.000423209 is a positive terminating decimal less than 1. It has 9 decimal places, and its final digit is in the billionths place.
Direct Answer
0.000423209 in words is zero point zero zero zero four two three two zero nine.
0.000423209 Place-Value Breakdown
The first 3 digits after the decimal point are zeros, and the digit 4 is in the ten-thousandth place.
| Part | Digit | Place | Digit value |
|---|---|---|---|
| Whole part | 0 | ones | 0 |
| Decimal part | 0 | tenth | 0/10 |
| Decimal part | 0 | hundredth | 0/100 |
| Decimal part | 0 | thousandth | 0/1000 |
| Decimal part | 4 | ten-thousandth | 4/10000 |
| Decimal part | 2 | hundred-thousandth | 2/100000 |
| Decimal part | 3 | millionth | 3/1000000 |
| Decimal part | 2 | ten-millionth | 2/10000000 |
| Decimal part | 0 | hundred-millionth | 0/100000000 |
| Decimal part | 9 | billionth | 9/1000000000 |
What Kind of Decimal Is 0.000423209?
0.000423209 is a positive terminating decimal less than 1. It is written to the billionths place.
Leading-zero pattern: 3 placeholder zeros appear before the first nonzero decimal digit. Those zeros determine the final place value.
Expanded Form of 0.000423209
0.000423209 = 4/10000 + 2/100000 + 3/1000000 + 2/10000000 + 9/1000000000
0.000423209 = 0 + 423209/1000000000
The final nonzero digit is in the billionths place, so its value is expressed with a denominator of 1000000000.
Why 423209/1000000000 Is Already in Lowest Terms
There are 9 decimal places, so the exact fraction is 423209/1000000000.
The greatest common divisor of its numerator and denominator is 1, so the fraction cannot be reduced further.
0.000423209 as a Percentage
To convert 0.000423209 to a percentage, multiply it by 100.
0.000423209 × 100 = 0.0423209
Therefore, 0.000423209 = 0.0423209%.
Reading a Very Small Decimal
The zeros after the point are placeholders. Read every one in spoken form so the nonzero digit lands correctly in the billionths place. In scientific notation, 0.000423209 = 423209 × 10-9.
Why the Zeros After the Point Matter
0.000423209 begins with 3 decimal-place placeholders before its first nonzero digit. Omitting one would move that digit left and create a different value.
How Far Is 0.000423209 from 1?
1 − 0.000423209 = 0.999576791
1 − 423209/1000000000 = 999576791/1000000000
0.000423209 is nine hundred ninety-nine million five hundred seventy-six thousand seven hundred ninety-one billionths below 1. The remaining part is 999576791/1000000000 = 999576791/1000000000 = 99.9576791%.
0.000423209 Compared with Similar Decimals
| Decimal | Spoken form | Place-value form | Fraction | Percentage | Relationship |
|---|---|---|---|---|---|
| 0.0000423209 | zero point zero zero zero zero four two three two zero nine | four hundred twenty-three thousand two hundred nine ten-billionths | 423209/10000000000 | 0.00423209% | ten times smaller than 0.000423209 |
| 0.000423209 | zero point zero zero zero four two three two zero nine | four hundred twenty-three thousand two hundred nine billionths | 423209/1000000000 | 0.0423209% | current value |
| 0.0004232090 | zero point zero zero zero four two three two zero nine zero | four million two hundred thirty-two thousand ninety ten-billionths | 423209/1000000000 | 0.0423209% | same numerical value, written to the ten-billionths place |
| 0.00423209 | zero point zero zero four two three two zero nine | four hundred twenty-three thousand two hundred nine hundred-millionths | 423209/100000000 | 0.423209% | ten times larger than 0.000423209 |
Quick Practice
How is 0.000423209 read digit by digit?
Zero point zero zero zero four two three two zero nine.
What is the place-value word form of 0.000423209?
Four hundred twenty-three thousand two hundred nine billionths.
What fraction is 0.000423209 in lowest terms?
423209/1000000000.
What percentage is equal to 0.000423209?
0.0423209%.
Why must the zero after the decimal point be read?
It holds an empty place before the first nonzero digit and fixes the value in the billionths place.
Which is greater: 0.000423209 or 0.00423209?
0.00423209 is ten times as large.
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Frequently Asked Questions
How do you write 0.000423209 in words?
0.000423209 in words is zero point zero zero zero four two three two zero nine.
Why is 0.000423209 called four hundred twenty-three thousand two hundred nine billionths?
There are 9 digits after the point, so the fractional part is expressed in billionths. Read the complete value as four hundred twenty-three thousand two hundred nine billionths.
What fraction is 0.000423209?
0.000423209 is 423209/1000000000 exactly and 423209/1000000000 in lowest terms.
Is 423209/1000000000 already in lowest terms?
Yes. Its numerator and denominator have a greatest common divisor of 1.
What percentage is 0.000423209?
0.000423209 is equal to 0.0423209%.
Is 0.000423209 the same as 0.0004232090?
Yes. 0.000423209 and 0.0004232090 have the same numerical value. However, 0.000423209 is written to the billionths place, while 0.0004232090 is written to the ten-billionths place and may communicate greater recorded precision.
Is 0.000423209 larger than 0.0000423209?
Yes. 0.000423209 is ten times as large as 0.0000423209.
What type of decimal is 0.000423209?
0.000423209 is a positive terminating decimal less than 1. It is written to 9 decimal places and represents four hundred twenty-three thousand two hundred nine billionths.