28289421

28,289,421 is an odd composite number composed of three prime numbers multiplied together.

What does the number 28289421 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 18 divisors.

28289421 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eighteen divisors.

Prime factorization of 28289421:

3² × 61 × 227²

(3 × 3 × 61 × 227 × 227)

See below for interesting mathematical facts about the number 28289421 from the Numbermatics database.

Names of 28289421

Cardinal: 28289421 can be written as Twenty-eight million, two hundred eighty-nine thousand, four hundred twenty-one.

Scientific notation

Scientific notation: 2.8289421 × 10⁷

Factors of 28289421

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 291

Divisors of 28289421

Number of divisors d(n): 18
Complete list of divisors:
1 3 9 61 183 227 549 681 2043 13847 41541 51529 124623 154587 463761 3143269 9429807 28289421
Sum of all divisors σ(n): 41716142
Sum of proper divisors (its aliquot sum) s(n): 13426721
28289421 is a deficient number, because the sum of its proper divisors (13426721) is less than itself. Its deficiency is 14862700

Bases of 28289421

Binary: 1101011111010100110001101₂
Hexadecimal: 0x1AFA98D
Base-36: GUC99

Squares and roots of 28289421

28289421 squared (28289421²) is 800291340515241
28289421 cubed (28289421³) is 22639778654490009565461
The square root of 28289421 is 5318.7800292923
The cube root of 28289421 is 304.7015660095

Scales and comparisons

How big is 28289421?

28,289,421 seconds is equal to 46 weeks, 5 days, 10 hours, 10 minutes, 21 seconds.
To count from 1 to 28,289,421 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 28289421 cubic inches would be around 25.4 feet tall.

Recreational maths with 28289421

28289421 backwards is 12498282
The number of decimal digits it has is: 8
The sum of 28289421's digits is 36
More coming soon!

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The information we have on file for 28289421 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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