428 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.
Prime factorization of 428:
22 × 107(2 × 2 × 107)
See below for interesting mathematical facts about the number 428 from the Numbermatics database.
Names of 428
- Cardinal: 428 can be written as Four hundred twenty-eight.
- Scientific notation: 4.28 × 102
Factors of 428
Divisors of 428
Bases of 428
- Binary: 1101011002
- Hexadecimal: 0x1AC
- Base-36: BW
Squares and roots of 428
Scales and comparisonsHow big is 428?
- 428 seconds is equal to 7 minutes, 8 seconds.
To count from 1 to 428 would take you about three minutes.
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 428 cubic inches would be around 0.6 feet tall.
Recreational maths with 428
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"Number 428 - Facts about the integer". Numbermatics.com. 2022. Web. 5 October 2022.
Numbermatics. (2022). Number 428 - Facts about the integer. Retrieved 5 October 2022, from https://numbermatics.com/n/428/
Numbermatics. 2022. "Number 428 - Facts about the integer". https://numbermatics.com/n/428/
The information we have on file for 428 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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