21328455

21,328,455 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21328455 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

21328455 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 21328455:

3 × 5 × 17 × 83641

See below for interesting mathematical facts about the number 21328455 from the Numbermatics database.

Names of 21328455

Cardinal: 21328455 can be written as Twenty-one million, three hundred twenty-eight thousand, four hundred fifty-five.

Scientific notation

Scientific notation: 2.1328455 × 10⁷

Factors of 21328455

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 83666

Divisors of 21328455

Number of divisors d(n): 16
Complete list of divisors:
1 3 5 15 17 51 85 255 83641 250923 418205 1254615 1421897 4265691 7109485 21328455
Sum of all divisors σ(n): 36133344
Sum of proper divisors (its aliquot sum) s(n): 14804889
21328455 is a deficient number, because the sum of its proper divisors (14804889) is less than itself. Its deficiency is 6523566

Bases of 21328455

Binary: 1010001010111001001000111₂
Hexadecimal: 0x1457247
Base-36: CP553

Squares and roots of 21328455

21328455 squared (21328455²) is 454902992687025
21328455 cubed (21328455³) is 9702378008890541796375
The square root of 21328455 is 4618.2740282493
The cube root of 21328455 is 277.3233678321

Scales and comparisons

How big is 21328455?

21,328,455 seconds is equal to 35 weeks, 1 day, 20 hours, 34 minutes, 15 seconds.
To count from 1 to 21,328,455 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 21328455 cubic inches would be around 23.1 feet tall.

Recreational maths with 21328455

21328455 backwards is 55482312
The number of decimal digits it has is: 8
The sum of 21328455's digits is 30
More coming soon!

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The information we have on file for 21328455 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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