21389137

21,389,137 is an odd composite number composed of three prime numbers multiplied together.

What does the number 21389137 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 16 divisors.

21389137 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 21389137:

7³ × 11 × 5669

(7 × 7 × 7 × 11 × 5669)

See below for interesting mathematical facts about the number 21389137 from the Numbermatics database.

Names of 21389137

Cardinal: 21389137 can be written as Twenty-one million, three hundred eighty-nine thousand, one hundred thirty-seven.

Scientific notation

Scientific notation: 2.1389137 × 10⁷

Factors of 21389137

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 5687

Divisors of 21389137

Number of divisors d(n): 16
Complete list of divisors:
1 7 11 49 77 343 539 3773 5669 39683 62359 277781 436513 1944467 3055591 21389137
Sum of all divisors σ(n): 27216000
Sum of proper divisors (its aliquot sum) s(n): 5826863
21389137 is a deficient number, because the sum of its proper divisors (5826863) is less than itself. Its deficiency is 15562274

Bases of 21389137

Binary: 1010001100101111101010001₂
Hexadecimal: 0x1465F51
Base-36: CQFYP

Squares and roots of 21389137

21389137 squared (21389137²) is 457495181604769
21389137 cubed (21389137³) is 9785427116184283994353
The square root of 21389137 is 4624.8391323375
The cube root of 21389137 is 277.5861248245

Scales and comparisons

How big is 21389137?

21,389,137 seconds is equal to 35 weeks, 2 days, 13 hours, 25 minutes, 37 seconds.
To count from 1 to 21,389,137 would take you about eight 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 21389137 cubic inches would be around 23.1 feet tall.

Recreational maths with 21389137

21389137 backwards is 73198312
The number of decimal digits it has is: 8
The sum of 21389137's digits is 34
More coming soon!

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The information we have on file for 21389137 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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