28871790

28,871,790 is an even composite number composed of five prime numbers multiplied together.

What does the number 28871790 look like?

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

28871790 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 28871790:

2 × 3 × 5 × 41 × 23473

See below for interesting mathematical facts about the number 28871790 from the Numbermatics database.

Names of 28871790

Cardinal: 28871790 can be written as Twenty-eight million, eight hundred seventy-one thousand, seven hundred ninety.

Scientific notation

Scientific notation: 2.887179 × 10⁷

Factors of 28871790

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 5
Sum of prime factors: 23524

Divisors of 28871790

Number of divisors d(n): 32
Complete list of divisors:
1 2 3 5 6 10 15 30 41 82 123 205 246 410 615 1230 23473 46946 70419 117365 140838 234730 352095 704190 962393 1924786 2887179 4811965 5774358 9623930 14435895 28871790
Sum of all divisors σ(n): 70985376
Sum of proper divisors (its aliquot sum) s(n): 42113586
28871790 is an abundant number, because the sum of its proper divisors (42113586) is greater than itself. Its abundance is 13241796

Bases of 28871790

Binary: 1101110001000110001101110₂
Hexadecimal: 0x1B88C6E
Base-36: H6TM6

Squares and roots of 28871790

28871790 squared (28871790²) is 833580257804100
28871790 cubed (28871790³) is 24066954151465836339000
The square root of 28871790 is 5373.2476213181
The cube root of 28871790 is 306.7782530805

Scales and comparisons

How big is 28871790?

28,871,790 seconds is equal to 47 weeks, 5 days, 3 hours, 56 minutes, 30 seconds.
To count from 1 to 28,871,790 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 28871790 cubic inches would be around 25.6 feet tall.

Recreational maths with 28871790

28871790 backwards is 09717882
The number of decimal digits it has is: 8
The sum of 28871790's digits is 42
More coming soon!

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The information we have on file for 28871790 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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