81472

81,472 is an even composite number composed of three prime numbers multiplied together.

What does the number 81472 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 28 divisors.

81472 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty-eight divisors.

Prime factorization of 81472:

2⁶ × 19 × 67

(2 × 2 × 2 × 2 × 2 × 2 × 19 × 67)

See below for interesting mathematical facts about the number 81472 from the Numbermatics database.

Names of 81472

Cardinal: 81472 can be written as Eighty-one thousand, four hundred seventy-two.

Scientific notation

Scientific notation: 8.1472 × 10⁴

Factors of 81472

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 8
Sum of prime factors: 88

Divisors of 81472

Number of divisors d(n): 28
Complete list of divisors:
1 2 4 8 16 19 32 38 64 67 76 134 152 268 304 536 608 1072 1216 1273 2144 2546 4288 5092 10184 20368 40736 81472
Sum of all divisors σ(n): 172720
Sum of proper divisors (its aliquot sum) s(n): 91248
81472 is an abundant number, because the sum of its proper divisors (91248) is greater than itself. Its abundance is 9776

Bases of 81472

Binary: 10011111001000000₂
Hexadecimal: 0x13E40
Base-36: 1QV4

Squares and roots of 81472

81472 squared (81472²) is 6637686784
81472 cubed (81472³) is 540785617666048
The square root of 81472 is 285.4330043985
The cube root of 81472 is 43.3513665903

Scales and comparisons

How big is 81472?

81,472 seconds is equal to 22 hours, 37 minutes, 52 seconds.
To count from 1 to 81,472 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 81472 cubic inches would be around 3.6 feet tall.

Recreational maths with 81472

81472 backwards is 27418
The number of decimal digits it has is: 5
The sum of 81472's digits is 22
More coming soon!

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The information we have on file for 81472 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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