813868

813,868 is an even composite number composed of four prime numbers multiplied together.

What does the number 813868 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

813868 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 813868:

2² × 11 × 53 × 349

(2 × 2 × 11 × 53 × 349)

See below for interesting mathematical facts about the number 813868 from the Numbermatics database.

Names of 813868

Cardinal: 813868 can be written as Eight hundred thirteen thousand, eight hundred sixty-eight.

Scientific notation

Scientific notation: 8.13868 × 10⁵

Factors of 813868

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 415

Divisors of 813868

Number of divisors d(n): 24
Complete list of divisors:
1 2 4 11 22 44 53 106 212 349 583 698 1166 1396 2332 3839 7678 15356 18497 36994 73988 203467 406934 813868
Sum of all divisors σ(n): 1587600
Sum of proper divisors (its aliquot sum) s(n): 773732
813868 is a deficient number, because the sum of its proper divisors (773732) is less than itself. Its deficiency is 40136

Bases of 813868

Binary: 11000110101100101100₂
Hexadecimal: 0xC6B2C
Base-36: HFZG

Squares and roots of 813868

813868 squared (813868²) is 662381121424
813868 cubed (813868³) is 539090798531108032
The square root of 813868 is 902.1463295941
The cube root of 813868 is 93.3651195589

Scales and comparisons

How big is 813868?

813,868 seconds is equal to 1 week, 2 days, 10 hours, 4 minutes, 28 seconds.
To count from 1 to 813,868 would take you about two days!

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 813868 cubic inches would be around 7.8 feet tall.

Recreational maths with 813868

813868 backwards is 868318
The number of decimal digits it has is: 6
The sum of 813868's digits is 34
More coming soon!

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The information we have on file for 813868 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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