81164

81,164 is an even composite number composed of three prime numbers multiplied together.

What does the number 81164 look like?

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

81164 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 81164:

2² × 103 × 197

(2 × 2 × 103 × 197)

See below for interesting mathematical facts about the number 81164 from the Numbermatics database.

Names of 81164

Cardinal: 81164 can be written as Eighty-one thousand, one hundred sixty-four.

Scientific notation

Scientific notation: 8.1164 × 10⁴

Factors of 81164

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 302

Divisors of 81164

Number of divisors d(n): 12
Complete list of divisors:
1 2 4 103 197 206 394 412 788 20291 40582 81164
Sum of all divisors σ(n): 144144
Sum of proper divisors (its aliquot sum) s(n): 62980
81164 is a deficient number, because the sum of its proper divisors (62980) is less than itself. Its deficiency is 18184

Bases of 81164

Binary: 10011110100001100₂
Hexadecimal: 0x13D0C
Base-36: 1QMK

Squares and roots of 81164

81164 squared (81164²) is 6587594896
81164 cubed (81164³) is 534675552138944
The square root of 81164 is 284.8929623561
The cube root of 81164 is 43.2966685261

Scales and comparisons

How big is 81164?

81,164 seconds is equal to 22 hours, 32 minutes, 44 seconds.
To count from 1 to 81,164 would take you about twenty-two 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 81164 cubic inches would be around 3.6 feet tall.

Recreational maths with 81164

81164 backwards is 46118
The number of decimal digits it has is: 5
The sum of 81164's digits is 20
More coming soon!

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The information we have on file for 81164 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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