21621392

21,621,392 is an even composite number composed of four prime numbers multiplied together.

What does the number 21621392 look like?

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

21621392 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 21621392:

2⁴ × 13 × 19 × 5471

(2 × 2 × 2 × 2 × 13 × 19 × 5471)

See below for interesting mathematical facts about the number 21621392 from the Numbermatics database.

Names of 21621392

Cardinal: 21621392 can be written as Twenty-one million, six hundred twenty-one thousand, three hundred ninety-two.

Scientific notation

Scientific notation: 2.1621392 × 10⁷

Factors of 21621392

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 5505

Divisors of 21621392

Number of divisors d(n): 40
Complete list of divisors:
1 2 4 8 13 16 19 26 38 52 76 104 152 208 247 304 494 988 1976 3952 5471 10942 21884 43768 71123 87536 103949 142246 207898 284492 415796 568984 831592 1137968 1351337 1663184 2702674 5405348 10810696 21621392
Sum of all divisors σ(n): 47496960
Sum of proper divisors (its aliquot sum) s(n): 25875568
21621392 is an abundant number, because the sum of its proper divisors (25875568) is greater than itself. Its abundance is 4254176

Bases of 21621392

Binary: 1010010011110101010010000₂
Hexadecimal: 0x149EA90
Base-36: CVF68

Squares and roots of 21621392

21621392 squared (21621392²) is 467484592017664
21621392 cubed (21621392³) is 10107667617973984268288
The square root of 21621392 is 4649.8808586885
The cube root of 21621392 is 278.5872375237

Scales and comparisons

How big is 21621392?

21,621,392 seconds is equal to 35 weeks, 5 days, 5 hours, 56 minutes, 32 seconds.
To count from 1 to 21,621,392 would take you about four 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 21621392 cubic inches would be around 23.2 feet tall.

Recreational maths with 21621392

21621392 backwards is 29312612
21621392 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21621392's digits is 26
More coming soon!

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The information we have on file for 21621392 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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