21493180

21,493,180 is an even composite number composed of five prime numbers multiplied together.

What does the number 21493180 look like?

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

21493180 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 21493180:

2² × 5 × 19 × 163 × 347

(2 × 2 × 5 × 19 × 163 × 347)

See below for interesting mathematical facts about the number 21493180 from the Numbermatics database.

Names of 21493180

Cardinal: 21493180 can be written as Twenty-one million, four hundred ninety-three thousand, one hundred eighty.

Scientific notation

Scientific notation: 2.149318 × 10⁷

Factors of 21493180

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 536

Divisors of 21493180

Number of divisors d(n): 48
Complete list of divisors:
1 2 4 5 10 19 20 38 76 95 163 190 326 347 380 652 694 815 1388 1630 1735 3097 3260 3470 6194 6593 6940 12388 13186 15485 26372 30970 32965 56561 61940 65930 113122 131860 226244 282805 565610 1074659 1131220 2149318 4298636 5373295 10746590 21493180
Sum of all divisors σ(n): 47940480
Sum of proper divisors (its aliquot sum) s(n): 26447300
21493180 is an abundant number, because the sum of its proper divisors (26447300) is greater than itself. Its abundance is 4954120

Bases of 21493180

Binary: 1010001111111010110111100₂
Hexadecimal: 0x147F5BC
Base-36: CSO8S

Squares and roots of 21493180

21493180 squared (21493180²) is 461956786512400
21493180 cubed (21493180³) is 9928920364732585432000
The square root of 21493180 is 4636.0737699051
The cube root of 21493180 is 278.0354836269

Scales and comparisons

How big is 21493180?

21,493,180 seconds is equal to 35 weeks, 3 days, 18 hours, 19 minutes, 40 seconds.
To count from 1 to 21,493,180 would take you about two 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 21493180 cubic inches would be around 23.2 feet tall.

Recreational maths with 21493180

21493180 backwards is 08139412
The number of decimal digits it has is: 8
The sum of 21493180's digits is 28
More coming soon!

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The information we have on file for 21493180 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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