28137428

28,137,428 is an even composite number composed of three prime numbers multiplied together.

What does the number 28137428 look like?

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

28137428 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 28137428:

2² × 11 × 639487

(2 × 2 × 11 × 639487)

See below for interesting mathematical facts about the number 28137428 from the Numbermatics database.

Names of 28137428

Cardinal: 28137428 can be written as Twenty-eight million, one hundred thirty-seven thousand, four hundred twenty-eight.

Scientific notation

Scientific notation: 2.8137428 × 10⁷

Factors of 28137428

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 639500

Divisors of 28137428

Number of divisors d(n): 12
Complete list of divisors:
1 2 4 11 22 44 639487 1278974 2557948 7034357 14068714 28137428
Sum of all divisors σ(n): 53716992
Sum of proper divisors (its aliquot sum) s(n): 25579564
28137428 is a deficient number, because the sum of its proper divisors (25579564) is less than itself. Its deficiency is 2557864

Bases of 28137428

Binary: 1101011010101011111010100₂
Hexadecimal: 0x1AD57D4
Base-36: GR2Z8

Squares and roots of 28137428

28137428 squared (28137428²) is 791714854455184
28137428 cubed (28137428³) is 22276819713763219026752
The square root of 28137428 is 5304.4724525631
The cube root of 28137428 is 304.1548870233

Scales and comparisons

How big is 28137428?

28,137,428 seconds is equal to 46 weeks, 3 days, 15 hours, 57 minutes, 8 seconds.
To count from 1 to 28,137,428 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 28137428 cubic inches would be around 25.3 feet tall.

Recreational maths with 28137428

28137428 backwards is 82473182
The number of decimal digits it has is: 8
The sum of 28137428's digits is 35
More coming soon!

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The information we have on file for 28137428 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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