28855729

28,855,729 is an odd composite number composed of two prime numbers multiplied together.

What does the number 28855729 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

28855729 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 28855729:

7 × 4122247

See below for interesting mathematical facts about the number 28855729 from the Numbermatics database.

Names of 28855729

Cardinal: 28855729 can be written as Twenty-eight million, eight hundred fifty-five thousand, seven hundred twenty-nine.

Scientific notation

Scientific notation: 2.8855729 × 10⁷

Factors of 28855729

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 4122254

Divisors of 28855729

Number of divisors d(n): 4
Complete list of divisors:
1 7 4122247 28855729
Sum of all divisors σ(n): 32977984
Sum of proper divisors (its aliquot sum) s(n): 4122255
28855729 is a deficient number, because the sum of its proper divisors (4122255) is less than itself. Its deficiency is 24733474

Bases of 28855729

Binary: 1101110000100110110110001₂
Hexadecimal: 0x1B84DB1
Base-36: H6H81

Squares and roots of 28855729

28855729 squared (28855729²) is 832653096121441
28855729 cubed (28855729³) is 24026812092691252585489
The square root of 28855729 is 5371.7528796475
The cube root of 28855729 is 306.7213569495

Scales and comparisons

How big is 28855729?

28,855,729 seconds is equal to 47 weeks, 4 days, 23 hours, 28 minutes, 49 seconds.
To count from 1 to 28,855,729 would take you about nineteen 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 28855729 cubic inches would be around 25.6 feet tall.

Recreational maths with 28855729

28855729 backwards is 92755882
The number of decimal digits it has is: 8
The sum of 28855729's digits is 46
More coming soon!

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The information we have on file for 28855729 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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