28397

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

What does the number 28397 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

28397 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 28397:

73 × 389

See below for interesting mathematical facts about the number 28397 from the Numbermatics database.

Names of 28397

Cardinal: 28397 can be written as Twenty-eight thousand, three hundred ninety-seven.

Scientific notation

Scientific notation: 2.8397 × 10⁴

Factors of 28397

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 462

Divisors of 28397

Number of divisors d(n): 4
Complete list of divisors:
1 73 389 28397
Sum of all divisors σ(n): 28860
Sum of proper divisors (its aliquot sum) s(n): 463
28397 is a deficient number, because the sum of its proper divisors (463) is less than itself. Its deficiency is 27934

Bases of 28397

Binary: 110111011101101₂
Hexadecimal: 0x6EED
Base-36: LWT

Squares and roots of 28397

28397 squared (28397²) is 806389609
28397 cubed (28397³) is 22899045726773
The square root of 28397 is 168.5140943661
The cube root of 28397 is 30.5087317113

Scales and comparisons

How big is 28397?

28,397 seconds is equal to 7 hours, 53 minutes, 17 seconds.
To count from 1 to 28,397 would take you about seven hours.

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 28397 cubic inches would be around 2.5 feet tall.

Recreational maths with 28397

28397 backwards is 79382
The number of decimal digits it has is: 5
The sum of 28397's digits is 29
More coming soon!

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The information we have on file for 28397 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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