21404340

21,404,340 is an even composite number composed of four prime numbers multiplied together.

What does the number 21404340 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 36 divisors.

21404340 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-six divisors.

Prime factorization of 21404340:

2² × 3² × 5 × 118913

(2 × 2 × 3 × 3 × 5 × 118913)

See below for interesting mathematical facts about the number 21404340 from the Numbermatics database.

Names of 21404340

Cardinal: 21404340 can be written as Twenty-one million, four hundred four thousand, three hundred forty.

Scientific notation

Scientific notation: 2.140434 × 10⁷

Factors of 21404340

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 118923

Divisors of 21404340

Number of divisors d(n): 36
Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 118913 237826 356739 475652 594565 713478 1070217 1189130 1426956 1783695 2140434 2378260 3567390 4280868 5351085 7134780 10702170 21404340
Sum of all divisors σ(n): 64927044
Sum of proper divisors (its aliquot sum) s(n): 43522704
21404340 is an abundant number, because the sum of its proper divisors (43522704) is greater than itself. Its abundance is 22118364

Bases of 21404340

Binary: 1010001101001101010110100₂
Hexadecimal: 0x1469AB4
Base-36: CQRP0

Squares and roots of 21404340

21404340 squared (21404340²) is 458145770835600
21404340 cubed (21404340³) is 9806307848527266504000
The square root of 21404340 is 4626.4824651133
The cube root of 21404340 is 277.6518769301

Scales and comparisons

How big is 21404340?

21,404,340 seconds is equal to 35 weeks, 2 days, 17 hours, 39 minutes.
To count from 1 to 21,404,340 would take you about fourteen 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 21404340 cubic inches would be around 23.1 feet tall.

Recreational maths with 21404340

21404340 backwards is 04340412
21404340 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21404340's digits is 18
More coming soon!

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The information we have on file for 21404340 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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