21242860

21,242,860 is an even composite number composed of five prime numbers multiplied together.

What does the number 21242860 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

21242860 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21242860:

2² × 5 × 17 × 43 × 1453

(2 × 2 × 5 × 17 × 43 × 1453)

See below for interesting mathematical facts about the number 21242860 from the Numbermatics database.

Names of 21242860

Cardinal: 21242860 can be written as Twenty-one million, two hundred forty-two thousand, eight hundred sixty.

Scientific notation

Scientific notation: 2.124286 × 10⁷

Factors of 21242860

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 1520

Divisors of 21242860

Number of divisors d(n): 48
Complete list of divisors:
1 2 4 5 10 17 20 34 43 68 85 86 170 172 215 340 430 731 860 1453 1462 2906 2924 3655 5812 7265 7310 14530 14620 24701 29060 49402 62479 98804 123505 124958 247010 249916 312395 494020 624790 1062143 1249580 2124286 4248572 5310715 10621430 21242860
Sum of all divisors σ(n): 48365856
Sum of proper divisors (its aliquot sum) s(n): 27122996
21242860 is an abundant number, because the sum of its proper divisors (27122996) is greater than itself. Its abundance is 5880136

Bases of 21242860

Binary: 1010001000010001111101100₂
Hexadecimal: 0x14423EC
Base-36: CNB3G

Squares and roots of 21242860

21242860 squared (21242860²) is 451259100979600
21242860 cubed (21242860³) is 9586033905835505656000
The square root of 21242860 is 4608.9977218479
The cube root of 21242860 is 276.9518872763

Scales and comparisons

How big is 21242860?

21,242,860 seconds is equal to 35 weeks, 20 hours, 47 minutes, 40 seconds.
To count from 1 to 21,242,860 would take you about four days!

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 21242860 cubic inches would be around 23.1 feet tall.

Recreational maths with 21242860

21242860 backwards is 06824212
The number of decimal digits it has is: 8
The sum of 21242860's digits is 25
More coming soon!

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The information we have on file for 21242860 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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