18006813

18,006,813 is an odd composite number composed of four prime numbers multiplied together.

What does the number 18006813 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

18006813 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 18006813:

3³ × 11 × 19 × 3191

(3 × 3 × 3 × 11 × 19 × 3191)

See below for interesting mathematical facts about the number 18006813 from the Numbermatics database.

Names of 18006813

Cardinal: 18006813 can be written as Eighteen million, six thousand, eight hundred thirteen.

Scientific notation

Scientific notation: 1.8006813 × 10⁷

Factors of 18006813

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 3224

Divisors of 18006813

Number of divisors d(n): 32
Complete list of divisors:
1 3 9 11 19 27 33 57 99 171 209 297 513 627 1881 3191 5643 9573 28719 35101 60629 86157 105303 181887 315909 545661 666919 947727 1636983 2000757 6002271 18006813
Sum of all divisors σ(n): 30643200
Sum of proper divisors (its aliquot sum) s(n): 12636387
18006813 is a deficient number, because the sum of its proper divisors (12636387) is less than itself. Its deficiency is 5370426

Bases of 18006813

Binary: 1000100101100001100011101₂
Hexadecimal: 0x112C31D
Base-36: APY59

Squares and roots of 18006813

18006813 squared (18006813²) is 324245314416969
18006813 cubed (18006813³) is 5838624742832564809797
The square root of 18006813 is 4243.4435309075
The cube root of 18006813 is 262.1072002707

Scales and comparisons

How big is 18006813?

18,006,813 seconds is equal to 29 weeks, 5 days, 9 hours, 53 minutes, 33 seconds.
To count from 1 to 18,006,813 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 18006813 cubic inches would be around 21.8 feet tall.

Recreational maths with 18006813

18006813 backwards is 31860081
18006813 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 18006813's digits is 27
More coming soon!

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The information we have on file for 18006813 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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