21240738

21,240,738 is an even composite number composed of four prime numbers multiplied together.

What does the number 21240738 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

21240738 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 21240738:

2 × 3³ × 37 × 10631

(2 × 3 × 3 × 3 × 37 × 10631)

See below for interesting mathematical facts about the number 21240738 from the Numbermatics database.

Names of 21240738

Cardinal: 21240738 can be written as Twenty-one million, two hundred forty thousand, seven hundred thirty-eight.

Scientific notation

Scientific notation: 2.1240738 × 10⁷

Factors of 21240738

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 10673

Divisors of 21240738

Number of divisors d(n): 32
Complete list of divisors:
1 2 3 6 9 18 27 37 54 74 111 222 333 666 999 1998 10631 21262 31893 63786 95679 191358 287037 393347 574074 786694 1180041 2360082 3540123 7080246 10620369 21240738
Sum of all divisors σ(n): 48481920
Sum of proper divisors (its aliquot sum) s(n): 27241182
21240738 is an abundant number, because the sum of its proper divisors (27241182) is greater than itself. Its abundance is 6000444

Bases of 21240738

Binary: 1010001000001101110100010₂
Hexadecimal: 0x1441BA2
Base-36: CN9GI

Squares and roots of 21240738

21240738 squared (21240738²) is 451168950784644
21240738 cubed (21240738³) is 9583161477351517627272
The square root of 21240738 is 4608.7675142059
The cube root of 21240738 is 276.9426651743

Scales and comparisons

How big is 21240738?

21,240,738 seconds is equal to 35 weeks, 20 hours, 12 minutes, 18 seconds.
To count from 1 to 21,240,738 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 21240738 cubic inches would be around 23.1 feet tall.

Recreational maths with 21240738

21240738 backwards is 83704212
21240738 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21240738's digits is 27
More coming soon!

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The information we have on file for 21240738 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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