21388101

21,388,101 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21388101 look like?

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

21388101 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 21388101:

3 × 7 × 41 × 24841

See below for interesting mathematical facts about the number 21388101 from the Numbermatics database.

Names of 21388101

Cardinal: 21388101 can be written as Twenty-one million, three hundred eighty-eight thousand, one hundred one.

Scientific notation

Scientific notation: 2.1388101 × 10⁷

Factors of 21388101

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 24892

Divisors of 21388101

Number of divisors d(n): 16
Complete list of divisors:
1 3 7 21 41 123 287 861 24841 74523 173887 521661 1018481 3055443 7129367 21388101
Sum of all divisors σ(n): 33387648
Sum of proper divisors (its aliquot sum) s(n): 11999547
21388101 is a deficient number, because the sum of its proper divisors (11999547) is less than itself. Its deficiency is 9388554

Bases of 21388101

Binary: 1010001100101101101000101₂
Hexadecimal: 0x1465B45
Base-36: CQF5X

Squares and roots of 21388101

21388101 squared (21388101²) is 457450864386201
21388101 cubed (21388101³) is 9784005290029369994301
The square root of 21388101 is 4624.7271270855
The cube root of 21388101 is 277.5816430499

Scales and comparisons

How big is 21388101?

21,388,101 seconds is equal to 35 weeks, 2 days, 13 hours, 8 minutes, 21 seconds.
To count from 1 to 21,388,101 would take you about seven 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 21388101 cubic inches would be around 23.1 feet tall.

Recreational maths with 21388101

21388101 backwards is 10188312
The number of decimal digits it has is: 8
The sum of 21388101's digits is 24
More coming soon!

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The information we have on file for 21388101 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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