21396972

21,396,972 is an even composite number composed of four prime numbers multiplied together.

What does the number 21396972 look like?

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

21396972 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 21396972:

2² × 3 × 43 × 41467

(2 × 2 × 3 × 43 × 41467)

See below for interesting mathematical facts about the number 21396972 from the Numbermatics database.

Names of 21396972

Cardinal: 21396972 can be written as Twenty-one million, three hundred ninety-six thousand, nine hundred seventy-two.

Scientific notation

Scientific notation: 2.1396972 × 10⁷

Factors of 21396972

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 41515

Divisors of 21396972

Number of divisors d(n): 24
Complete list of divisors:
1 2 3 4 6 12 43 86 129 172 258 516 41467 82934 124401 165868 248802 497604 1783081 3566162 5349243 7132324 10698486 21396972
Sum of all divisors σ(n): 51088576
Sum of proper divisors (its aliquot sum) s(n): 29691604
21396972 is an abundant number, because the sum of its proper divisors (29691604) is greater than itself. Its abundance is 8294632

Bases of 21396972

Binary: 1010001100111110111101100₂
Hexadecimal: 0x1467DEC
Base-36: CQM0C

Squares and roots of 21396972

21396972 squared (21396972²) is 457830410768784
21396972 cubed (21396972³) is 9796184479968169722048
The square root of 21396972 is 4625.6861112705
The cube root of 21396972 is 277.6200146411

Scales and comparisons

How big is 21396972?

21,396,972 seconds is equal to 35 weeks, 2 days, 15 hours, 36 minutes, 12 seconds.
To count from 1 to 21,396,972 would take you about eleven 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 21396972 cubic inches would be around 23.1 feet tall.

Recreational maths with 21396972

21396972 backwards is 27969312
The number of decimal digits it has is: 8
The sum of 21396972's digits is 39
More coming soon!

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The information we have on file for 21396972 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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