28819990

28,819,990 is an even composite number composed of four prime numbers multiplied together.

What does the number 28819990 look like?

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

28819990 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 28819990:

2 × 5 × 79 × 191²

(2 × 5 × 79 × 191 × 191)

See below for interesting mathematical facts about the number 28819990 from the Numbermatics database.

Names of 28819990

Cardinal: 28819990 can be written as Twenty-eight million, eight hundred nineteen thousand, nine hundred ninety.

Scientific notation

Scientific notation: 2.881999 × 10⁷

Factors of 28819990

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 277

Divisors of 28819990

Number of divisors d(n): 24
Complete list of divisors:
1 2 5 10 79 158 191 382 395 790 955 1910 15089 30178 36481 72962 75445 150890 182405 364810 2881999 5763998 14409995 28819990
Sum of all divisors σ(n): 52809120
Sum of proper divisors (its aliquot sum) s(n): 23989130
28819990 is a deficient number, because the sum of its proper divisors (23989130) is less than itself. Its deficiency is 4830860

Bases of 28819990

Binary: 1101101111100001000010110₂
Hexadecimal: 0x1B7C216
Base-36: H5PNA

Squares and roots of 28819990

28819990 squared (28819990²) is 830591823600100
28819990 cubed (28819990³) is 23937648050236645999000
The square root of 28819990 is 5368.4252812161
The cube root of 28819990 is 306.5946756553

Scales and comparisons

How big is 28819990?

28,819,990 seconds is equal to 47 weeks, 4 days, 13 hours, 33 minutes, 10 seconds.
To count from 1 to 28,819,990 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 28819990 cubic inches would be around 25.5 feet tall.

Recreational maths with 28819990

28819990 backwards is 09991882
The number of decimal digits it has is: 8
The sum of 28819990's digits is 46
More coming soon!

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The information we have on file for 28819990 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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