28438209

28,438,209 is an odd composite number composed of three prime numbers multiplied together.

What does the number 28438209 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 20 divisors.

28438209 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty divisors.

Prime factorization of 28438209:

3⁴ × 109 × 3221

(3 × 3 × 3 × 3 × 109 × 3221)

See below for interesting mathematical facts about the number 28438209 from the Numbermatics database.

Names of 28438209

Cardinal: 28438209 can be written as Twenty-eight million, four hundred thirty-eight thousand, two hundred nine.

Scientific notation

Scientific notation: 2.8438209 × 10⁷

Factors of 28438209

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 6
Sum of prime factors: 3333

Divisors of 28438209

Number of divisors d(n): 20
Complete list of divisors:
1 3 9 27 81 109 327 981 2943 3221 8829 9663 28989 86967 260901 351089 1053267 3159801 9479403 28438209
Sum of all divisors σ(n): 42884820
Sum of proper divisors (its aliquot sum) s(n): 14446611
28438209 is a deficient number, because the sum of its proper divisors (14446611) is less than itself. Its deficiency is 13991598

Bases of 28438209

Binary: 1101100011110111011000001₂
Hexadecimal: 0x1B1EEC1
Base-36: GXJ29

Squares and roots of 28438209

28438209 squared (28438209²) is 808731731127681
28438209 cubed (28438209³) is 22998881994740797963329
The square root of 28438209 is 5332.7487283763
The cube root of 28438209 is 305.2348240859

Scales and comparisons

How big is 28438209?

28,438,209 seconds is equal to 47 weeks, 3 hours, 30 minutes, 9 seconds.
To count from 1 to 28,438,209 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 28438209 cubic inches would be around 25.4 feet tall.

Recreational maths with 28438209

28438209 backwards is 90283482
The number of decimal digits it has is: 8
The sum of 28438209's digits is 36
More coming soon!

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The information we have on file for 28438209 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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