28028421

28,028,421 is an odd composite number composed of three prime numbers multiplied together.

What does the number 28028421 look like?

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

28028421 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 28028421:

3² × 23 × 135403

(3 × 3 × 23 × 135403)

See below for interesting mathematical facts about the number 28028421 from the Numbermatics database.

Names of 28028421

Cardinal: 28028421 can be written as Twenty-eight million, twenty-eight thousand, four hundred twenty-one.

Scientific notation

Scientific notation: 2.8028421 × 10⁷

Factors of 28028421

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 135429

Divisors of 28028421

Number of divisors d(n): 12
Complete list of divisors:
1 3 9 23 69 207 135403 406209 1218627 3114269 9342807 28028421
Sum of all divisors σ(n): 42246048
Sum of proper divisors (its aliquot sum) s(n): 14217627
28028421 is a deficient number, because the sum of its proper divisors (14217627) is less than itself. Its deficiency is 13810794

Bases of 28028421

Binary: 1101010111010111000000101₂
Hexadecimal: 0x1ABAE05
Base-36: GOQV9

Squares and roots of 28028421

28028421 squared (28028421²) is 785592383753241
28028421 cubed (28028421³) is 22018914066229398862461
The square root of 28028421 is 5294.1874730689
The cube root of 28028421 is 303.7616039871

Scales and comparisons

How big is 28028421?

28,028,421 seconds is equal to 46 weeks, 2 days, 9 hours, 40 minutes, 21 seconds.
To count from 1 to 28,028,421 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 28028421 cubic inches would be around 25.3 feet tall.

Recreational maths with 28028421

28028421 backwards is 12482082
The number of decimal digits it has is: 8
The sum of 28028421's digits is 27
More coming soon!

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The information we have on file for 28028421 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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