28397997

28,397,997 is an odd composite number composed of two prime numbers multiplied together.

What does the number 28397997 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

28397997 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 28397997:

3² × 3155333

(3 × 3 × 3155333)

See below for interesting mathematical facts about the number 28397997 from the Numbermatics database.

Names of 28397997

Cardinal: 28397997 can be written as Twenty-eight million, three hundred ninety-seven thousand, nine hundred ninety-seven.

Scientific notation

Scientific notation: 2.8397997 × 10⁷

Factors of 28397997

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 3155336

Divisors of 28397997

Number of divisors d(n): 6
Complete list of divisors:
1 3 9 3155333 9465999 28397997
Sum of all divisors σ(n): 41019342
Sum of proper divisors (its aliquot sum) s(n): 12621345
28397997 is a deficient number, because the sum of its proper divisors (12621345) is less than itself. Its deficiency is 15776652

Bases of 28397997

Binary: 1101100010101000110101101₂
Hexadecimal: 0x1B151AD
Base-36: GWO19

Squares and roots of 28397997

28397997 squared (28397997²) is 806446233612009
28397997 cubed (28397997³) is 22901457722775130745973
The square root of 28397997 is 5328.9771063497
The cube root of 28397997 is 305.0908875423

Scales and comparisons

How big is 28397997?

28,397,997 seconds is equal to 46 weeks, 6 days, 16 hours, 19 minutes, 57 seconds.
To count from 1 to 28,397,997 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 28397997 cubic inches would be around 25.4 feet tall.

Recreational maths with 28397997

28397997 backwards is 79979382
The number of decimal digits it has is: 8
The sum of 28397997's digits is 54
More coming soon!

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The information we have on file for 28397997 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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