72642990

72,642,990 is an even composite number composed of five prime numbers multiplied together.

What does the number 72642990 look like?

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

72642990 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 72642990:

2 × 3 × 5 × 7² × 49417

(2 × 3 × 5 × 7 × 7 × 49417)

See below for interesting mathematical facts about the number 72642990 from the Numbermatics database.

Names of 72642990

Cardinal: 72642990 can be written as Seventy-two million, six hundred forty-two thousand, nine hundred ninety.

Scientific notation

Scientific notation: 7.264299 × 10⁷

Factors of 72642990

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 49434

Divisors of 72642990

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 5 6 7 10 14 15 21 30 35 42 49 70 98 105 147 210 245 294 490 735 1470 49417 98834 148251 247085 296502 345919 494170 691838 741255 1037757 1482510 1729595 2075514 2421433 3459190 4842866 5188785 7264299 10377570 12107165 14528598 24214330 36321495 72642990
Sum of all divisors σ(n): 202811472
Sum of proper divisors (its aliquot sum) s(n): 130168482
72642990 is an abundant number, because the sum of its proper divisors (130168482) is greater than itself. Its abundance is 57525492

Bases of 72642990

Binary: 100010101000111000110101110₂
Hexadecimal: 0x45471AE
Base-36: 178ZOU

Squares and roots of 72642990

72642990 squared (72642990²) is 5277003996140100
72642990 cubed (72642990³) is 383337348521565322899000
The square root of 72642990 is 8523.0857088263
The cube root of 72642990 is 417.2514973291

Scales and comparisons

How big is 72642990?

72,642,990 seconds is equal to 2 years, 16 weeks, 18 hours, 36 minutes, 30 seconds.
To count from 1 to 72,642,990 would take you about three years!

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 72642990 cubic inches would be around 34.8 feet tall.

Recreational maths with 72642990

72642990 backwards is 09924627
The number of decimal digits it has is: 8
The sum of 72642990's digits is 39
More coming soon!

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The information we have on file for 72642990 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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