398 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.
Prime factorization of 398:
2 × 199
See below for interesting mathematical facts about the number 398 from the Numbermatics database.
Names of 398
- Cardinal: 398 can be written as Three hundred ninety-eight.
- Scientific notation: 3.98 × 102
Factors of 398
Divisors of 398
Bases of 398
- Binary: 1100011102
- Hexadecimal: 0x18E
- Base-36: B2
Squares and roots of 398
Scales and comparisonsHow big is 398?
- 398 seconds is equal to 6 minutes, 38 seconds.
To count from 1 to 398 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 398 cubic inches would be around 0.6 feet tall.
Recreational maths with 398
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Cite this page
"Number 398 - Facts about the integer". Numbermatics.com. 2020. Web. 23 November 2020.
Numbermatics. (2020). Number 398 - Facts about the integer. Retrieved 23 November 2020, from https://numbermatics.com/n/398/
Numbermatics. 2020. "Number 398 - Facts about the integer". https://numbermatics.com/n/398/
The information we have on file for 398 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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