18145728

18,145,728 is an even composite number composed of three prime numbers multiplied together.

What does the number 18145728 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 56 divisors.

18145728 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of fifty-six divisors.

Prime factorization of 18145728:

2⁶ × 3³ × 10501

(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 10501)

See below for interesting mathematical facts about the number 18145728 from the Numbermatics database.

Names of 18145728

Cardinal: 18145728 can be written as Eighteen million, one hundred forty-five thousand, seven hundred twenty-eight.

Scientific notation

Scientific notation: 1.8145728 × 10⁷

Factors of 18145728

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 10
Sum of prime factors: 10506

Divisors of 18145728

Number of divisors d(n): 56
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 144 192 216 288 432 576 864 1728 10501 21002 31503 42004 63006 84008 94509 126012 168016 189018 252024 283527 336032 378036 504048 567054 672064 756072 1008096 1134108 1512144 2016192 2268216 3024288 4536432 6048576 9072864 18145728
Sum of all divisors σ(n): 53350160
Sum of proper divisors (its aliquot sum) s(n): 35204432
18145728 is an abundant number, because the sum of its proper divisors (35204432) is greater than itself. Its abundance is 17058704

Bases of 18145728

Binary: 1000101001110000111000000₂
Hexadecimal: 0x114E1C0
Base-36: ASXC0

Squares and roots of 18145728

18145728 squared (18145728²) is 329267444649984
18145728 cubed (18145728³) is 5974797489873664868352
The square root of 18145728 is 4259.7802760237
The cube root of 18145728 is 262.7794900697

Scales and comparisons

How big is 18145728?

18,145,728 seconds is equal to 30 weeks, 28 minutes, 48 seconds.
To count from 1 to 18,145,728 would take you about forty-five weeks!

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 18145728 cubic inches would be around 21.9 feet tall.

Recreational maths with 18145728

18145728 backwards is 82754181
18145728 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 18145728's digits is 36
More coming soon!

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The information we have on file for 18145728 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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