728838

728,838 is an even composite number composed of four prime numbers multiplied together.

What does the number 728838 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 40 divisors.

728838 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 728838:

2 × 3⁴ × 11 × 409

(2 × 3 × 3 × 3 × 3 × 11 × 409)

See below for interesting mathematical facts about the number 728838 from the Numbermatics database.

Names of 728838

Cardinal: 728838 can be written as Seven hundred twenty-eight thousand, eight hundred thirty-eight.

Scientific notation

Scientific notation: 7.28838 × 10⁵

Factors of 728838

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 425

Divisors of 728838

Number of divisors d(n): 40
Complete list of divisors:
1 2 3 6 9 11 18 22 27 33 54 66 81 99 162 198 297 409 594 818 891 1227 1782 2454 3681 4499 7362 8998 11043 13497 22086 26994 33129 40491 66258 80982 121473 242946 364419 728838
Sum of all divisors σ(n): 1785960
Sum of proper divisors (its aliquot sum) s(n): 1057122
728838 is an abundant number, because the sum of its proper divisors (1057122) is greater than itself. Its abundance is 328284

Bases of 728838

Binary: 10110001111100000110₂
Hexadecimal: 0xB1F06
Base-36: FMDI

Squares and roots of 728838

728838 squared (728838²) is 531204830244
728838 cubed (728838³) is 387162266065376472
The square root of 728838 is 853.7200946447
The cube root of 728838 is 89.9933328395

Scales and comparisons

How big is 728838?

728,838 seconds is equal to 1 week, 1 day, 10 hours, 27 minutes, 18 seconds.
To count from 1 to 728,838 would take you about ten hours!

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 728838 cubic inches would be around 7.5 feet tall.

Recreational maths with 728838

728838 backwards is 838827
The number of decimal digits it has is: 6
The sum of 728838's digits is 36
More coming soon!

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The information we have on file for 728838 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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