21399807

21,399,807 is an odd composite number composed of five prime numbers multiplied together.

What does the number 21399807 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 32 divisors.

21399807 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 21399807:

3 × 11 × 13 × 83 × 601

See below for interesting mathematical facts about the number 21399807 from the Numbermatics database.

Names of 21399807

Cardinal: 21399807 can be written as Twenty-one million, three hundred ninety-nine thousand, eight hundred seven.

Scientific notation

Scientific notation: 2.1399807 × 10⁷

Factors of 21399807

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 5
Sum of prime factors: 711

Divisors of 21399807

Number of divisors d(n): 32
Complete list of divisors:
1 3 11 13 33 39 83 143 249 429 601 913 1079 1803 2739 3237 6611 7813 11869 19833 23439 35607 49883 85943 149649 257829 548713 648479 1646139 1945437 7133269 21399807
Sum of all divisors σ(n): 33981696
Sum of proper divisors (its aliquot sum) s(n): 12581889
21399807 is a deficient number, because the sum of its proper divisors (12581889) is less than itself. Its deficiency is 8817918

Bases of 21399807

Binary: 1010001101000100011111111₂
Hexadecimal: 0x14688FF
Base-36: CQO73

Squares and roots of 21399807

21399807 squared (21399807²) is 457951739637249
21399807 cubed (21399807³) is 9800078843551378610943
The square root of 21399807 is 4625.9925421471
The cube root of 21399807 is 277.6322752229

Scales and comparisons

How big is 21399807?

21,399,807 seconds is equal to 35 weeks, 2 days, 16 hours, 23 minutes, 27 seconds.
To count from 1 to 21,399,807 would take you about twelve 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 21399807 cubic inches would be around 23.1 feet tall.

Recreational maths with 21399807

21399807 backwards is 70899312
21399807 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21399807's digits is 39
More coming soon!

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The information we have on file for 21399807 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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