21189188

21,189,188 is an even composite number composed of four prime numbers multiplied together.

What does the number 21189188 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

21189188 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 21189188:

2² × 53 × 127 × 787

(2 × 2 × 53 × 127 × 787)

See below for interesting mathematical facts about the number 21189188 from the Numbermatics database.

Names of 21189188

Cardinal: 21189188 can be written as Twenty-one million, one hundred eighty-nine thousand, one hundred eighty-eight.

Scientific notation

Scientific notation: 2.1189188 × 10⁷

Factors of 21189188

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 969

Divisors of 21189188

Number of divisors d(n): 24
Complete list of divisors:
1 2 4 53 106 127 212 254 508 787 1574 3148 6731 13462 26924 41711 83422 99949 166844 199898 399796 5297297 10594594 21189188
Sum of all divisors σ(n): 38126592
Sum of proper divisors (its aliquot sum) s(n): 16937404
21189188 is a deficient number, because the sum of its proper divisors (16937404) is less than itself. Its deficiency is 4251784

Bases of 21189188

Binary: 1010000110101001001000100₂
Hexadecimal: 0x1435244
Base-36: CM5OK

Squares and roots of 21189188

21189188 squared (21189188²) is 448981688099344
21189188 cubed (21189188³) is 9513557397694362692672
The square root of 21189188 is 4603.1715153795
The cube root of 21189188 is 276.7184425929

Scales and comparisons

How big is 21189188?

21,189,188 seconds is equal to 35 weeks, 5 hours, 53 minutes, 8 seconds.
To count from 1 to 21,189,188 would take you about three days!

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 21189188 cubic inches would be around 23.1 feet tall.

Recreational maths with 21189188

21189188 backwards is 88198112
The number of decimal digits it has is: 8
The sum of 21189188's digits is 38
More coming soon!

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The information we have on file for 21189188 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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