13821821

13,821,821 is an odd composite number composed of three prime numbers multiplied together.

What does the number 13821821 look like?

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

13821821 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 13821821:

13 × 97² × 113

(13 × 97 × 97 × 113)

See below for interesting mathematical facts about the number 13821821 from the Numbermatics database.

Names of 13821821

Cardinal: 13821821 can be written as Thirteen million, eight hundred twenty-one thousand, eight hundred twenty-one.

Scientific notation

Scientific notation: 1.3821821 × 10⁷

Factors of 13821821

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 223

Divisors of 13821821

Number of divisors d(n): 12
Complete list of divisors:
1 13 97 113 1261 1469 9409 10961 122317 142493 1063217 13821821
Sum of all divisors σ(n): 15173172
Sum of proper divisors (its aliquot sum) s(n): 1351351
13821821 is a deficient number, because the sum of its proper divisors (1351351) is less than itself. Its deficiency is 12470470

Bases of 13821821

Binary: 110100101110011101111101₂
Hexadecimal: 0xD2E77D
Base-36: 888ZH

Squares and roots of 13821821

13821821 squared (13821821²) is 191042735756041
13821821 cubed (13821821³) is 2640558496970298370661
The square root of 13821821 is 3717.7709719669
The cube root of 13821821 is 239.9873893835

Scales and comparisons

How big is 13821821?

13,821,821 seconds is equal to 22 weeks, 5 days, 23 hours, 23 minutes, 41 seconds.
To count from 1 to 13,821,821 would take you about thirty-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 13821821 cubic inches would be around 20 feet tall.

Recreational maths with 13821821

13821821 backwards is 12812831
The number of decimal digits it has is: 8
The sum of 13821821's digits is 26
More coming soon!

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The information we have on file for 13821821 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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