40728730

40,728,730 is an even composite number composed of five prime numbers multiplied together.

What does the number 40728730 look like?

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

40728730 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 40728730:

2 × 5 × 7 × 31 × 137²

(2 × 5 × 7 × 31 × 137 × 137)

See below for interesting mathematical facts about the number 40728730 from the Numbermatics database.

Names of 40728730

Cardinal: 40728730 can be written as Forty million, seven hundred twenty-eight thousand, seven hundred thirty.

Scientific notation

Scientific notation: 4.072873 × 10⁷

Factors of 40728730

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 182

Divisors of 40728730

Number of divisors d(n): 48
Complete list of divisors:
1 2 5 7 10 14 31 35 62 70 137 155 217 274 310 434 685 959 1085 1370 1918 2170 4247 4795 8494 9590 18769 21235 29729 37538 42470 59458 93845 131383 148645 187690 262766 297290 581839 656915 1163678 1313830 2909195 4072873 5818390 8145746 20364365 40728730
Sum of all divisors σ(n): 87123456
Sum of proper divisors (its aliquot sum) s(n): 46394726
40728730 is an abundant number, because the sum of its proper divisors (46394726) is greater than itself. Its abundance is 5665996

Bases of 40728730

Binary: 10011011010111100010011010₂
Hexadecimal: 0x26D789A
Base-36: O8YHM

Squares and roots of 40728730

40728730 squared (40728730²) is 1658829447412900
40728730 cubed (40728730³) is 67562016679729202617000
The square root of 40728730 is 6381.9064549711
The cube root of 40728730 is 344.0595545439

Scales and comparisons

How big is 40728730?

40,728,730 seconds is equal to 1 year, 15 weeks, 2 days, 9 hours, 32 minutes, 10 seconds.
To count from 1 to 40,728,730 would take you about forty-nine 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 40728730 cubic inches would be around 28.7 feet tall.

Recreational maths with 40728730

40728730 backwards is 03782704
40728730 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 40728730's digits is 31
More coming soon!

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The information we have on file for 40728730 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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