161 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.
Prime factorization of 161:
7 × 23
See below for interesting mathematical facts about the number 161 from the Numbermatics database.
Names of 161
- Cardinal: 161 can be written as One hundred sixty-one.
- Scientific notation: 1.61 × 102
Factors of 161
Divisors of 161
Bases of 161
- Binary: 101000012
- Hexadecimal: 0xA1
- Base-36: 4H
Squares and roots of 161
Scales and comparisonsHow big is 161?
- 161 seconds is equal to 2 minutes, 41 seconds.
To count from 1 to 161 would take you about twenty seconds.
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 161 cubic inches would be around 0.5 feet tall.
Recreational maths with 161
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"Number 161 - Facts about the integer". Numbermatics.com. 2022. Web. 4 July 2022.
Numbermatics. (2022). Number 161 - Facts about the integer. Retrieved 4 July 2022, from https://numbermatics.com/n/161/
Numbermatics. 2022. "Number 161 - Facts about the integer". https://numbermatics.com/n/161/
The information we have on file for 161 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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