21369690

21,369,690 is an even composite number composed of four prime numbers multiplied together.

What does the number 21369690 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

21369690 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 21369690:

2 × 3³ × 5 × 79147

(2 × 3 × 3 × 3 × 5 × 79147)

See below for interesting mathematical facts about the number 21369690 from the Numbermatics database.

Names of 21369690

Cardinal: 21369690 can be written as Twenty-one million, three hundred sixty-nine thousand, six hundred ninety.

Scientific notation

Scientific notation: 2.136969 × 10⁷

Factors of 21369690

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 79157

Divisors of 21369690

Number of divisors d(n): 32
Complete list of divisors:
1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 79147 158294 237441 395735 474882 712323 791470 1187205 1424646 2136969 2374410 3561615 4273938 7123230 10684845 21369690
Sum of all divisors σ(n): 56986560
Sum of proper divisors (its aliquot sum) s(n): 35616870
21369690 is an abundant number, because the sum of its proper divisors (35616870) is greater than itself. Its abundance is 14247180

Bases of 21369690

Binary: 1010001100001001101011010₂
Hexadecimal: 0x146135A
Base-36: CQ0YI

Squares and roots of 21369690

21369690 squared (21369690²) is 456663650696100
21369690 cubed (21369690³) is 9758760649643941209000
The square root of 21369690 is 4622.7362027267
The cube root of 21369690 is 277.5019722283

Scales and comparisons

How big is 21369690?

21,369,690 seconds is equal to 35 weeks, 2 days, 8 hours, 1 minute, 30 seconds.
To count from 1 to 21,369,690 would take you about two minutes!

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 21369690 cubic inches would be around 23.1 feet tall.

Recreational maths with 21369690

21369690 backwards is 09696312
The number of decimal digits it has is: 8
The sum of 21369690's digits is 36
More coming soon!

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The information we have on file for 21369690 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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