28218789

28,218,789 is an odd composite number composed of three prime numbers multiplied together.

What does the number 28218789 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

28218789 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 28218789:

3² × 107 × 29303

(3 × 3 × 107 × 29303)

See below for interesting mathematical facts about the number 28218789 from the Numbermatics database.

Names of 28218789

Cardinal: 28218789 can be written as Twenty-eight million, two hundred eighteen thousand, seven hundred eighty-nine.

Scientific notation

Scientific notation: 2.8218789 × 10⁷

Factors of 28218789

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 29413

Divisors of 28218789

Number of divisors d(n): 12
Complete list of divisors:
1 3 9 107 321 963 29303 87909 263727 3135421 9406263 28218789
Sum of all divisors σ(n): 41142816
Sum of proper divisors (its aliquot sum) s(n): 12924027
28218789 is a deficient number, because the sum of its proper divisors (12924027) is less than itself. Its deficiency is 15294762

Bases of 28218789

Binary: 1101011101001010110100101₂
Hexadecimal: 0x1AE95A5
Base-36: GSTR9

Squares and roots of 28218789

28218789 squared (28218789²) is 796300052626521
28218789 cubed (28218789³) is 22470623165756691903069
The square root of 28218789 is 5312.1360110599
The cube root of 28218789 is 304.4477653937

Scales and comparisons

How big is 28218789?

28,218,789 seconds is equal to 46 weeks, 4 days, 14 hours, 33 minutes, 9 seconds.
To count from 1 to 28,218,789 would take you about seventeen 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 28218789 cubic inches would be around 25.4 feet tall.

Recreational maths with 28218789

28218789 backwards is 98781282
The number of decimal digits it has is: 8
The sum of 28218789's digits is 45
More coming soon!

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The information we have on file for 28218789 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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