71945 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 71945:
5 × 14389
5 × 14389
See below for interesting mathematical facts about the number 71945 from the Numbermatics database.
Names of 71945
- Cardinal: 71945 can be written as Seventy-one thousand, nine hundred forty-five.
- Scientific notation: 7.1945 × 104
Factors of 71945
- Number of distinct prime factors ω(n): 2
- Total number of prime factors Ω(n): 2
- Sum of prime factors: 14394
Divisors of 71945
- Number of divisors d(n): 4
- Complete list of divisors:
- Sum of all divisors σ(n): 86340
- Sum of proper divisors (its aliquot sum) s(n): 14395
- 71945 is a deficient number, because the sum of its proper divisors (14395) is less than itself. Its deficiency is 57550
Bases of 71945
- Binary: 100011001000010012
- Hexadecimal: 0x11909
- Base-36: 1JIH
Squares and roots of 71945
- 71945 squared (719452) is 5176083025
- 71945 cubed (719453) is 372393293233625
square rootof 71945 is 268.2256512715
cube rootof 71945 is 41.5910807431
Scales and comparisonsHow big is 71945?
- 71,945 seconds is equal to 19 hours, 59 minutes, 5 seconds.
To count from 1 to 71,945 would take you about nineteen hours.
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 71945 cubic inches would be around 3.5 feet tall.
Recreational maths with 71945
- 71945 backwards is 54917
- The number of decimal digits it has is: 5
- The sum of 71945's digits is 26
- More coming soon!
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Cite this page
"Number 71945 - Facts about the integer". Numbermatics.com. 2020. Web. 18 January 2020.
Numbermatics. (2020). Number 71945 - Facts about the integer. Retrieved 18 January 2020, from https://numbermatics.com/n/71945/
Numbermatics. 2020. "Number 71945 - Facts about the integer". https://numbermatics.com/n/71945/
The information we have on file for 71945 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!