21429340

21,429,340 is an even composite number composed of four prime numbers multiplied together.

What does the number 21429340 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

21429340 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 21429340:

2² × 5 × 19 × 56393

(2 × 2 × 5 × 19 × 56393)

See below for interesting mathematical facts about the number 21429340 from the Numbermatics database.

Names of 21429340

Cardinal: 21429340 can be written as Twenty-one million, four hundred twenty-nine thousand, three hundred forty.

Scientific notation

Scientific notation: 2.142934 × 10⁷

Factors of 21429340

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 56419

Divisors of 21429340

Number of divisors d(n): 24
Complete list of divisors:
1 2 4 5 10 19 20 38 76 95 190 380 56393 112786 225572 281965 563930 1071467 1127860 2142934 4285868 5357335 10714670 21429340
Sum of all divisors σ(n): 47370960
Sum of proper divisors (its aliquot sum) s(n): 25941620
21429340 is an abundant number, because the sum of its proper divisors (25941620) is greater than itself. Its abundance is 4512280

Bases of 21429340

Binary: 1010001101111110001011100₂
Hexadecimal: 0x146FC5C
Base-36: CRAZG

Squares and roots of 21429340

21429340 squared (21429340²) is 459216612835600
21429340 cubed (21429340³) is 9840708930102436504000
The square root of 21429340 is 4629.1835133205
The cube root of 21429340 is 277.7599328389

Scales and comparisons

How big is 21429340?

21,429,340 seconds is equal to 35 weeks, 3 days, 35 minutes, 40 seconds.
To count from 1 to 21,429,340 would take you about fifty-three 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 21429340 cubic inches would be around 23.1 feet tall.

Recreational maths with 21429340

21429340 backwards is 04392412
The number of decimal digits it has is: 8
The sum of 21429340's digits is 25
More coming soon!

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The information we have on file for 21429340 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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