21213384

21,213,384 is an even composite number composed of four prime numbers multiplied together.

What does the number 21213384 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 48 divisors.

21213384 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21213384:

2³ × 3 × 29² × 1051

(2 × 2 × 2 × 3 × 29 × 29 × 1051)

See below for interesting mathematical facts about the number 21213384 from the Numbermatics database.

Names of 21213384

Cardinal: 21213384 can be written as Twenty-one million, two hundred thirteen thousand, three hundred eighty-four.

Scientific notation

Scientific notation: 2.1213384 × 10⁷

Factors of 21213384

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 1085

Divisors of 21213384

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 6 8 12 24 29 58 87 116 174 232 348 696 841 1051 1682 2102 2523 3153 3364 4204 5046 6306 6728 8408 10092 12612 20184 25224 30479 60958 91437 121916 182874 243832 365748 731496 883891 1767782 2651673 3535564 5303346 7071128 10606692 21213384
Sum of all divisors σ(n): 54977520
Sum of proper divisors (its aliquot sum) s(n): 33764136
21213384 is an abundant number, because the sum of its proper divisors (33764136) is greater than itself. Its abundance is 12550752

Bases of 21213384

Binary: 1010000111011000011001000₂
Hexadecimal: 0x143B0C8
Base-36: CMOCO

Squares and roots of 21213384

21213384 squared (21213384²) is 450007660731456
21213384 cubed (21213384³) is 9546185310038097007104
The square root of 21213384 is 4605.7989534933
The cube root of 21213384 is 276.8237310781

Scales and comparisons

How big is 21213384?

21,213,384 seconds is equal to 35 weeks, 12 hours, 36 minutes, 24 seconds.
To count from 1 to 21,213,384 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 21213384 cubic inches would be around 23.1 feet tall.

Recreational maths with 21213384

21213384 backwards is 48331212
21213384 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21213384's digits is 24
More coming soon!

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The information we have on file for 21213384 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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