28555890

28,555,890 is an even composite number composed of five prime numbers multiplied together.

What does the number 28555890 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 32 divisors.

28555890 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 28555890:

2 × 3 × 5 × 11 × 86533

See below for interesting mathematical facts about the number 28555890 from the Numbermatics database.

Names of 28555890

Cardinal: 28555890 can be written as Twenty-eight million, five hundred fifty-five thousand, eight hundred ninety.

Scientific notation

Scientific notation: 2.855589 × 10⁷

Factors of 28555890

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 5
Sum of prime factors: 86554

Divisors of 28555890

Number of divisors d(n): 32
Complete list of divisors:
1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 86533 173066 259599 432665 519198 865330 951863 1297995 1903726 2595990 2855589 4759315 5711178 9518630 14277945 28555890
Sum of all divisors σ(n): 74765376
Sum of proper divisors (its aliquot sum) s(n): 46209486
28555890 is an abundant number, because the sum of its proper divisors (46209486) is greater than itself. Its abundance is 17653596

Bases of 28555890

Binary: 1101100111011101001110010₂
Hexadecimal: 0x1B3BA72
Base-36: H01V6

Squares and roots of 28555890

28555890 squared (28555890²) is 815438853692100
28555890 cubed (28555890³) is 23285582207757701469000
The square root of 28555890 is 5343.7711403089
The cube root of 28555890 is 305.6552784267

Scales and comparisons

How big is 28555890?

28,555,890 seconds is equal to 47 weeks, 1 day, 12 hours, 11 minutes, 30 seconds.
To count from 1 to 28,555,890 would take you about eighteen 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 28555890 cubic inches would be around 25.5 feet tall.

Recreational maths with 28555890

28555890 backwards is 09855582
The number of decimal digits it has is: 8
The sum of 28555890's digits is 42
More coming soon!

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The information we have on file for 28555890 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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