21214215

21,214,215 is an odd composite number composed of five prime numbers multiplied together.

What does the number 21214215 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

21214215 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21214215:

3² × 5 × 11 × 17 × 2521

(3 × 3 × 5 × 11 × 17 × 2521)

See below for interesting mathematical facts about the number 21214215 from the Numbermatics database.

Names of 21214215

Cardinal: 21214215 can be written as Twenty-one million, two hundred fourteen thousand, two hundred fifteen.

Scientific notation

Scientific notation: 2.1214215 × 10⁷

Factors of 21214215

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 2557

Divisors of 21214215

Number of divisors d(n): 48
Complete list of divisors:
1 3 5 9 11 15 17 33 45 51 55 85 99 153 165 187 255 495 561 765 935 1683 2521 2805 7563 8415 12605 22689 27731 37815 42857 83193 113445 128571 138655 214285 249579 385713 415965 471427 642855 1247895 1414281 1928565 2357135 4242843 7071405 21214215
Sum of all divisors σ(n): 42490656
Sum of proper divisors (its aliquot sum) s(n): 21276441
21214215 is an abundant number, because the sum of its proper divisors (21276441) is greater than itself. Its abundance is 62226

Bases of 21214215

Binary: 1010000111011010000000111₂
Hexadecimal: 0x143B407
Base-36: CMOZR

Squares and roots of 21214215

21214215 squared (21214215²) is 450042918066225
21214215 cubed (21214215³) is 9547307223084281388375
The square root of 21214215 is 4605.8891649713
The cube root of 21214215 is 276.8273457383

Scales and comparisons

How big is 21214215?

21,214,215 seconds is equal to 35 weeks, 12 hours, 50 minutes, 15 seconds.
To count from 1 to 21,214,215 would take you about four 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 21214215 cubic inches would be around 23.1 feet tall.

Recreational maths with 21214215

21214215 backwards is 51241212
The number of decimal digits it has is: 8
The sum of 21214215's digits is 18
More coming soon!

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The information we have on file for 21214215 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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