641728

641,728 is an even composite number composed of three prime numbers multiplied together.

What does the number 641728 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 28 divisors.

641728 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty-eight divisors.

Prime factorization of 641728:

2⁶ × 37 × 271

(2 × 2 × 2 × 2 × 2 × 2 × 37 × 271)

See below for interesting mathematical facts about the number 641728 from the Numbermatics database.

Names of 641728

Cardinal: 641728 can be written as Six hundred forty-one thousand, seven hundred twenty-eight.

Scientific notation

Scientific notation: 6.41728 × 10⁵

Factors of 641728

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 8
Sum of prime factors: 310

Divisors of 641728

Number of divisors d(n): 28
Complete list of divisors:
1 2 4 8 16 32 37 64 74 148 271 296 542 592 1084 1184 2168 2368 4336 8672 10027 17344 20054 40108 80216 160432 320864 641728
Sum of all divisors σ(n): 1312672
Sum of proper divisors (its aliquot sum) s(n): 670944
641728 is an abundant number, because the sum of its proper divisors (670944) is greater than itself. Its abundance is 29216

Bases of 641728

Binary: 10011100101011000000₂
Hexadecimal: 0x9CAC0
Base-36: DR5S

Squares and roots of 641728

641728 squared (641728²) is 411814825984
641728 cubed (641728³) is 264273104649060352
The square root of 641728 is 801.0792719825
The cube root of 641728 is 86.2548775509

Scales and comparisons

How big is 641728?

641,728 seconds is equal to 1 week, 10 hours, 15 minutes, 28 seconds.
To count from 1 to 641,728 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 641728 cubic inches would be around 7.2 feet tall.

Recreational maths with 641728

641728 backwards is 827146
The number of decimal digits it has is: 6
The sum of 641728's digits is 28
More coming soon!

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The information we have on file for 641728 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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