18139491

18,139,491 is an odd composite number composed of three prime numbers multiplied together.

What does the number 18139491 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 24 divisors.

18139491 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 18139491:

3³ × 59² × 193

(3 × 3 × 3 × 59 × 59 × 193)

See below for interesting mathematical facts about the number 18139491 from the Numbermatics database.

Names of 18139491

Cardinal: 18139491 can be written as Eighteen million, one hundred thirty-nine thousand, four hundred ninety-one.

Scientific notation

Scientific notation: 1.8139491 × 10⁷

Factors of 18139491

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 6
Sum of prime factors: 255

Divisors of 18139491

Number of divisors d(n): 24
Complete list of divisors:
1 3 9 27 59 177 193 531 579 1593 1737 3481 5211 10443 11387 31329 34161 93987 102483 307449 671833 2015499 6046497 18139491
Sum of all divisors σ(n): 27478160
Sum of proper divisors (its aliquot sum) s(n): 9338669
18139491 is a deficient number, because the sum of its proper divisors (9338669) is less than itself. Its deficiency is 8800822

Bases of 18139491

Binary: 1000101001100100101100011₂
Hexadecimal: 0x114C963
Base-36: ASSIR

Squares and roots of 18139491

18139491 squared (18139491²) is 329041133739081
18139491 cubed (18139491³) is 5968638684089856147771
The square root of 18139491 is 4259.0481330927
The cube root of 18139491 is 262.7493793371

Scales and comparisons

How big is 18139491?

18,139,491 seconds is equal to 29 weeks, 6 days, 22 hours, 44 minutes, 51 seconds.
To count from 1 to 18,139,491 would take you about forty-four 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 18139491 cubic inches would be around 21.9 feet tall.

Recreational maths with 18139491

18139491 backwards is 19493181
The number of decimal digits it has is: 8
The sum of 18139491's digits is 36
More coming soon!

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The information we have on file for 18139491 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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