18189940

18,189,940 is an even composite number composed of five prime numbers multiplied together.

What does the number 18189940 look like?

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

18189940 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 18189940:

2² × 5 × 37 × 47 × 523

(2 × 2 × 5 × 37 × 47 × 523)

See below for interesting mathematical facts about the number 18189940 from the Numbermatics database.

Names of 18189940

Cardinal: 18189940 can be written as Eighteen million, one hundred eighty-nine thousand, nine hundred forty.

Scientific notation

Scientific notation: 1.818994 × 10⁷

Factors of 18189940

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 614

Divisors of 18189940

Number of divisors d(n): 48
Complete list of divisors:
1 2 4 5 10 20 37 47 74 94 148 185 188 235 370 470 523 740 940 1046 1739 2092 2615 3478 5230 6956 8695 10460 17390 19351 24581 34780 38702 49162 77404 96755 98324 122905 193510 245810 387020 491620 909497 1818994 3637988 4547485 9094970 18189940
Sum of all divisors σ(n): 40142592
Sum of proper divisors (its aliquot sum) s(n): 21952652
18189940 is an abundant number, because the sum of its proper divisors (21952652) is greater than itself. Its abundance is 3762712

Bases of 18189940

Binary: 1000101011000111001110100₂
Hexadecimal: 0x1158E74
Base-36: ATVG4

Squares and roots of 18189940

18189940 squared (18189940²) is 330873917203600
18189940 cubed (18189940³) is 6018576701498451784000
The square root of 18189940 is 4264.9665883803
The cube root of 18189940 is 262.9927373939

Scales and comparisons

How big is 18189940?

18,189,940 seconds is equal to 30 weeks, 12 hours, 45 minutes, 40 seconds.
To count from 1 to 18,189,940 would take you about forty-five weeks!

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 18189940 cubic inches would be around 21.9 feet tall.

Recreational maths with 18189940

18189940 backwards is 04998181
The number of decimal digits it has is: 8
The sum of 18189940's digits is 40
More coming soon!

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The information we have on file for 18189940 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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