729428

729,428 is an even composite number composed of four prime numbers multiplied together.

What does the number 729428 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

729428 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 729428:

2² × 7 × 109 × 239

(2 × 2 × 7 × 109 × 239)

See below for interesting mathematical facts about the number 729428 from the Numbermatics database.

Names of 729428

Cardinal: 729428 can be written as Seven hundred twenty-nine thousand, four hundred twenty-eight.

Scientific notation

Scientific notation: 7.29428 × 10⁵

Factors of 729428

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 357

Divisors of 729428

Number of divisors d(n): 24
Complete list of divisors:
1 2 4 7 14 28 109 218 239 436 478 763 956 1526 1673 3052 3346 6692 26051 52102 104204 182357 364714 729428
Sum of all divisors σ(n): 1478400
Sum of proper divisors (its aliquot sum) s(n): 748972
729428 is an abundant number, because the sum of its proper divisors (748972) is greater than itself. Its abundance is 19544

Bases of 729428

Binary: 10110010000101010100₂
Hexadecimal: 0xB2154
Base-36: FMTW

Squares and roots of 729428

729428 squared (729428²) is 532065207184
729428 cubed (729428³) is 388103259945810752
The square root of 729428 is 854.0655712531
The cube root of 729428 is 90.0176097229

Scales and comparisons

How big is 729428?

729,428 seconds is equal to 1 week, 1 day, 10 hours, 37 minutes, 8 seconds.
To count from 1 to 729,428 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 729428 cubic inches would be around 7.5 feet tall.

Recreational maths with 729428

729428 backwards is 824927
The number of decimal digits it has is: 6
The sum of 729428's digits is 32
More coming soon!

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The information we have on file for 729428 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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