21138160

21,138,160 is an even composite number composed of four prime numbers multiplied together.

What does the number 21138160 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 40 divisors.

21138160 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 21138160:

2⁴ × 5 × 131 × 2017

(2 × 2 × 2 × 2 × 5 × 131 × 2017)

See below for interesting mathematical facts about the number 21138160 from the Numbermatics database.

Names of 21138160

Cardinal: 21138160 can be written as Twenty-one million, one hundred thirty-eight thousand, one hundred sixty.

Scientific notation

Scientific notation: 2.113816 × 10⁷

Factors of 21138160

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 2155

Divisors of 21138160

Number of divisors d(n): 40
Complete list of divisors:
1 2 4 5 8 10 16 20 40 80 131 262 524 655 1048 1310 2017 2096 2620 4034 5240 8068 10085 10480 16136 20170 32272 40340 80680 161360 264227 528454 1056908 1321135 2113816 2642270 4227632 5284540 10569080 21138160
Sum of all divisors σ(n): 49545936
Sum of proper divisors (its aliquot sum) s(n): 28407776
21138160 is an abundant number, because the sum of its proper divisors (28407776) is greater than itself. Its abundance is 7269616

Bases of 21138160

Binary: 1010000101000101011110000₂
Hexadecimal: 0x1428AF0
Base-36: CL2B4

Squares and roots of 21138160

21138160 squared (21138160²) is 446821808185600
21138160 cubed (21138160³) is 9444990872916522496000
The square root of 21138160 is 4597.6254740899
The cube root of 21138160 is 276.4961320633

Scales and comparisons

How big is 21138160?

21,138,160 seconds is equal to 34 weeks, 6 days, 15 hours, 42 minutes, 40 seconds.
To count from 1 to 21,138,160 would take you about two days!

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 21138160 cubic inches would be around 23 feet tall.

Recreational maths with 21138160

21138160 backwards is 06183112
The number of decimal digits it has is: 8
The sum of 21138160's digits is 22
More coming soon!

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The information we have on file for 21138160 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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