21003021

21,003,021 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21003021 look like?

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

21003021 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 21003021:

3² × 13 × 89 × 2017

(3 × 3 × 13 × 89 × 2017)

See below for interesting mathematical facts about the number 21003021 from the Numbermatics database.

Names of 21003021

Cardinal: 21003021 can be written as Twenty-one million, three thousand and twenty-one.

Scientific notation

Scientific notation: 2.1003021 × 10⁷

Factors of 21003021

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 2122

Divisors of 21003021

Number of divisors d(n): 24
Complete list of divisors:
1 3 9 13 39 89 117 267 801 1157 2017 3471 6051 10413 18153 26221 78663 179513 235989 538539 1615617 2333669 7001007 21003021
Sum of all divisors σ(n): 33054840
Sum of proper divisors (its aliquot sum) s(n): 12051819
21003021 is a deficient number, because the sum of its proper divisors (12051819) is less than itself. Its deficiency is 8951202

Bases of 21003021

Binary: 1010000000111101100001101₂
Hexadecimal: 0x1407B0D
Base-36: CI619

Squares and roots of 21003021

21003021 squared (21003021²) is 441126891126441
21003021 cubed (21003021³) is 9264997357993353978261
The square root of 21003021 is 4582.9053012255
The cube root of 21003021 is 275.9056467021

Scales and comparisons

How big is 21003021?

21,003,021 seconds is equal to 34 weeks, 5 days, 2 hours, 10 minutes, 21 seconds.
To count from 1 to 21,003,021 would take you about fifteen hours!

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 21003021 cubic inches would be around 23 feet tall.

Recreational maths with 21003021

21003021 backwards is 12030012
21003021 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21003021's digits is 9
More coming soon!

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The information we have on file for 21003021 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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