81327897

81,327,897 is an odd composite number composed of three prime numbers multiplied together.

What does the number 81327897 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 18 divisors.

81327897 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eighteen divisors.

Prime factorization of 81327897:

3² × 7² × 184417

(3 × 3 × 7 × 7 × 184417)

See below for interesting mathematical facts about the number 81327897 from the Numbermatics database.

Names of 81327897

Cardinal: 81327897 can be written as Eighty-one million, three hundred twenty-seven thousand, eight hundred ninety-seven.

Scientific notation

Scientific notation: 8.1327897 × 10⁷

Factors of 81327897

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 184427

Divisors of 81327897

Number of divisors d(n): 18
Complete list of divisors:
1 3 7 9 21 49 63 147 441 184417 553251 1290919 1659753 3872757 9036433 11618271 27109299 81327897
Sum of all divisors σ(n): 136653738
Sum of proper divisors (its aliquot sum) s(n): 55325841
81327897 is a deficient number, because the sum of its proper divisors (55325841) is less than itself. Its deficiency is 26002056

Bases of 81327897

Binary: 100110110001111011100011001₂
Hexadecimal: 0x4D8F719
Base-36: 1CF509

Squares and roots of 81327897

81327897 squared (81327897²) is 6614226830442609
81327897 cubed (81327897³) is 537921158400872969163273
The square root of 81327897 is 9018.1981016165
The cube root of 81327897 is 433.2579236957

Scales and comparisons

How big is 81327897?

81,327,897 seconds is equal to 2 years, 30 weeks, 3 days, 7 hours, 4 minutes, 57 seconds.
To count from 1 to 81,327,897 would take you about three years!

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 81327897 cubic inches would be around 36.1 feet tall.

Recreational maths with 81327897

81327897 backwards is 79872318
The number of decimal digits it has is: 8
The sum of 81327897's digits is 45
More coming soon!

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The information we have on file for 81327897 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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