21345768

21,345,768 is an even composite number composed of three prime numbers multiplied together.

What does the number 21345768 look like?

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

21345768 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 21345768:

2³ × 3⁴ × 32941

(2 × 2 × 2 × 3 × 3 × 3 × 3 × 32941)

See below for interesting mathematical facts about the number 21345768 from the Numbermatics database.

Names of 21345768

Cardinal: 21345768 can be written as Twenty-one million, three hundred forty-five thousand, seven hundred sixty-eight.

Scientific notation

Scientific notation: 2.1345768 × 10⁷

Factors of 21345768

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 8
Sum of prime factors: 32946

Divisors of 21345768

Number of divisors d(n): 40
Complete list of divisors:
1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 32941 65882 98823 131764 197646 263528 296469 395292 592938 790584 889407 1185876 1778814 2371752 2668221 3557628 5336442 7115256 10672884 21345768
Sum of all divisors σ(n): 59789730
Sum of proper divisors (its aliquot sum) s(n): 38443962
21345768 is an abundant number, because the sum of its proper divisors (38443962) is greater than itself. Its abundance is 17098194

Bases of 21345768

Binary: 1010001011011010111101000₂
Hexadecimal: 0x145B5E8
Base-36: CPII0

Squares and roots of 21345768

21345768 squared (21345768²) is 455641811509824
21345768 cubed (21345768³) is 9726024399588432824832
The square root of 21345768 is 4620.1480495759
The cube root of 21345768 is 277.3983850011

Scales and comparisons

How big is 21345768?

21,345,768 seconds is equal to 35 weeks, 2 days, 1 hour, 22 minutes, 48 seconds.
To count from 1 to 21,345,768 would take you about six 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 21345768 cubic inches would be around 23.1 feet tall.

Recreational maths with 21345768

21345768 backwards is 86754312
21345768 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21345768's digits is 36
More coming soon!

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The information we have on file for 21345768 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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