21142863

21,142,863 is an odd composite number composed of three prime numbers multiplied together.

What does the number 21142863 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 40 divisors.

21142863 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 21142863:

3⁴ × 7³ × 761

(3 × 3 × 3 × 3 × 7 × 7 × 7 × 761)

See below for interesting mathematical facts about the number 21142863 from the Numbermatics database.

Names of 21142863

Cardinal: 21142863 can be written as Twenty-one million, one hundred forty-two thousand, eight hundred sixty-three.

Scientific notation

Scientific notation: 2.1142863 × 10⁷

Factors of 21142863

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 8
Sum of prime factors: 771

Divisors of 21142863

Number of divisors d(n): 40
Complete list of divisors:
1 3 7 9 21 27 49 63 81 147 189 343 441 567 761 1029 1323 2283 3087 3969 5327 6849 9261 15981 20547 27783 37289 47943 61641 111867 143829 261023 335601 431487 783069 1006803 2349207 3020409 7047621 21142863
Sum of all divisors σ(n): 36880800
Sum of proper divisors (its aliquot sum) s(n): 15737937
21142863 is a deficient number, because the sum of its proper divisors (15737937) is less than itself. Its deficiency is 5404926

Bases of 21142863

Binary: 1010000101001110101001111₂
Hexadecimal: 0x1429D4F
Base-36: CL5XR

Squares and roots of 21142863

21142863 squared (21142863²) is 447020655836769
21142863 cubed (21142863³) is 9451296484526957329647
The square root of 21142863 is 4598.1369053131
The cube root of 21142863 is 276.5166362903

Scales and comparisons

How big is 21142863?

21,142,863 seconds is equal to 34 weeks, 6 days, 17 hours, 1 minute, 3 seconds.
To count from 1 to 21,142,863 would take you about three 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 21142863 cubic inches would be around 23 feet tall.

Recreational maths with 21142863

21142863 backwards is 36824112
21142863 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21142863's digits is 27
More coming soon!

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The information we have on file for 21142863 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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