20391616

20,391,616 is an even composite number composed of four prime numbers multiplied together.

What does the number 20391616 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 56 divisors.

20391616 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of fifty-six divisors.

Prime factorization of 20391616:

2⁶ × 7 × 23 × 1979

(2 × 2 × 2 × 2 × 2 × 2 × 7 × 23 × 1979)

See below for interesting mathematical facts about the number 20391616 from the Numbermatics database.

Names of 20391616

Cardinal: 20391616 can be written as Twenty million, three hundred ninety-one thousand, six hundred sixteen.

Scientific notation

Scientific notation: 2.0391616 × 10⁷

Factors of 20391616

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 9
Sum of prime factors: 2011

Divisors of 20391616

Number of divisors d(n): 56
Complete list of divisors:
1 2 4 7 8 14 16 23 28 32 46 56 64 92 112 161 184 224 322 368 448 644 736 1288 1472 1979 2576 3958 5152 7916 10304 13853 15832 27706 31664 45517 55412 63328 91034 110824 126656 182068 221648 318619 364136 443296 637238 728272 886592 1274476 1456544 2548952 2913088 5097904 10195808 20391616
Sum of all divisors σ(n): 48280320
Sum of proper divisors (its aliquot sum) s(n): 27888704
20391616 is an abundant number, because the sum of its proper divisors (27888704) is greater than itself. Its abundance is 7497088

Bases of 20391616

Binary: 1001101110010011011000000₂
Hexadecimal: 0x13726C0
Base-36: C529S

Squares and roots of 20391616

20391616 squared (20391616²) is 415818003091456
20391616 cubed (20391616³) is 8479201044927783632896
The square root of 20391616 is 4515.7076964747
The cube root of 20391616 is 273.2020044629

Scales and comparisons

How big is 20391616?

20,391,616 seconds is equal to 33 weeks, 5 days, 20 minutes, 16 seconds.
To count from 1 to 20,391,616 would take you about fifty weeks!

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 20391616 cubic inches would be around 22.8 feet tall.

Recreational maths with 20391616

20391616 backwards is 61619302
20391616 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 20391616's digits is 28
More coming soon!

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The information we have on file for 20391616 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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