20729731

20,729,731 is an odd composite number composed of four prime numbers multiplied together.

What does the number 20729731 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

20729731 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 20729731:

11 × 31² × 37 × 53

(11 × 31 × 31 × 37 × 53)

See below for interesting mathematical facts about the number 20729731 from the Numbermatics database.

Names of 20729731

Cardinal: 20729731 can be written as Twenty million, seven hundred twenty-nine thousand, seven hundred thirty-one.

Scientific notation

Scientific notation: 2.0729731 × 10⁷

Factors of 20729731

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 132

Divisors of 20729731

Number of divisors d(n): 24
Complete list of divisors:
1 11 31 37 53 341 407 583 961 1147 1643 1961 10571 12617 18073 21571 35557 50933 60791 391127 560263 668701 1884521 20729731
Sum of all divisors σ(n): 24451632
Sum of proper divisors (its aliquot sum) s(n): 3721901
20729731 is a deficient number, because the sum of its proper divisors (3721901) is less than itself. Its deficiency is 17007830

Bases of 20729731

Binary: 1001111000100111110000011₂
Hexadecimal: 0x13C4F83
Base-36: CCB5V

Squares and roots of 20729731

20729731 squared (20729731²) is 429721747332361
20729731 cubed (20729731³) is 8908016227049811124891
The square root of 20729731 is 4552.9914342111
The cube root of 20729731 is 274.7037294129

Scales and comparisons

How big is 20729731?

20,729,731 seconds is equal to 34 weeks, 1 day, 22 hours, 15 minutes, 31 seconds.
To count from 1 to 20,729,731 would take you about fifty-one 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 20729731 cubic inches would be around 22.9 feet tall.

Recreational maths with 20729731

20729731 backwards is 13792702
20729731 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 20729731's digits is 31
More coming soon!

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The information we have on file for 20729731 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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