28388916

28,388,916 is an even composite number composed of four prime numbers multiplied together.

What does the number 28388916 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 36 divisors.

28388916 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-six divisors.

Prime factorization of 28388916:

2² × 3² × 37 × 21313

(2 × 2 × 3 × 3 × 37 × 21313)

See below for interesting mathematical facts about the number 28388916 from the Numbermatics database.

Names of 28388916

Cardinal: 28388916 can be written as Twenty-eight million, three hundred eighty-eight thousand, nine hundred sixteen.

Scientific notation

Scientific notation: 2.8388916 × 10⁷

Factors of 28388916

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 21355

Divisors of 28388916

Number of divisors d(n): 36
Complete list of divisors:
1 2 3 4 6 9 12 18 36 37 74 111 148 222 333 444 666 1332 21313 42626 63939 85252 127878 191817 255756 383634 767268 788581 1577162 2365743 3154324 4731486 7097229 9462972 14194458 28388916
Sum of all divisors σ(n): 73703812
Sum of proper divisors (its aliquot sum) s(n): 45314896
28388916 is an abundant number, because the sum of its proper divisors (45314896) is greater than itself. Its abundance is 16925980

Bases of 28388916

Binary: 1101100010010111000110100₂
Hexadecimal: 0x1B12E34
Base-36: GWH10

Squares and roots of 28388916

28388916 squared (28388916²) is 805930551655056
28388916 cubed (28388916³) is 22879494732769045759296
The square root of 28388916 is 5328.1249985337
The cube root of 28388916 is 305.0583638197

Scales and comparisons

How big is 28388916?

28,388,916 seconds is equal to 46 weeks, 6 days, 13 hours, 48 minutes, 36 seconds.
To count from 1 to 28,388,916 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 28388916 cubic inches would be around 25.4 feet tall.

Recreational maths with 28388916

28388916 backwards is 61988382
The number of decimal digits it has is: 8
The sum of 28388916's digits is 45
More coming soon!

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The information we have on file for 28388916 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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