7420 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.
Prime factorization of 7420:
22 × 5 × 7 × 53
(2 × 2 × 5 × 7 × 53)
22 × 5 × 7 × 53(2 × 2 × 5 × 7 × 53)
See below for interesting mathematical facts about the number 7420 from the Numbermatics database.
Names of 7420
- Cardinal: 7420 can be written as Seven thousand, four hundred twenty.
- Scientific notation: 7.42 × 103
Factors of 7420
- Number of distinct prime factors ω(n): 4
- Total number of prime factors Ω(n): 5
- Sum of prime factors: 67
Divisors of 7420
- Number of divisors d(n): 24
- Complete list of divisors:
- Sum of all divisors σ(n): 18144
- Sum of proper divisors (its aliquot sum) s(n): 10724
- 7420 is an abundant number, because the sum of its proper divisors (10724) is greater than itself. Its abundance is 3304
Bases of 7420
- Binary: 11100111111002
- Hexadecimal: 0x1CFC
- Base-36: 5Q4
Squares and roots of 7420
- 7420 squared (74202) is 55056400
- 7420 cubed (74203) is 408518488000
square rootof 7420 is 86.1394218695
cube rootof 7420 is 19.5044916237
Scales and comparisonsHow big is 7420?
- 7,420 seconds is equal to 2 hours, 3 minutes, 40 seconds.
To count from 1 to 7,420 would take you about two 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 7420 cubic inches would be around 1.6 feet tall.
Recreational maths with 7420
- 7420 backwards is 0247
- The number of decimal digits it has is: 4
- The sum of 7420's digits is 13
- More coming soon!
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Cite this page
"Number 7420 - Facts about the integer". Numbermatics.com. 2019. Web. 14 October 2019.
Numbermatics. (2019). Number 7420 - Facts about the integer. Retrieved 14 October 2019, from https://numbermatics.com/n/7420/
Numbermatics. 2019. "Number 7420 - Facts about the integer". https://numbermatics.com/n/7420/
The information we have on file for 7420 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!