21121984

21,121,984 is an even composite number composed of four prime numbers multiplied together.

What does the number 21121984 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 56 divisors.

21121984 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of fifty-six divisors.

Prime factorization of 21121984:

2⁶ × 13 × 53 × 479

(2 × 2 × 2 × 2 × 2 × 2 × 13 × 53 × 479)

See below for interesting mathematical facts about the number 21121984 from the Numbermatics database.

Names of 21121984

Cardinal: 21121984 can be written as Twenty-one million, one hundred twenty-one thousand, nine hundred eighty-four.

Scientific notation

Scientific notation: 2.1121984 × 10⁷

Factors of 21121984

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 9
Sum of prime factors: 547

Divisors of 21121984

Number of divisors d(n): 56
Complete list of divisors:
1 2 4 8 13 16 26 32 52 53 64 104 106 208 212 416 424 479 689 832 848 958 1378 1696 1916 2756 3392 3832 5512 6227 7664 11024 12454 15328 22048 24908 25387 30656 44096 49816 50774 99632 101548 199264 203096 330031 398528 406192 660062 812384 1320124 1624768 2640248 5280496 10560992 21121984
Sum of all divisors σ(n): 46085760
Sum of proper divisors (its aliquot sum) s(n): 24963776
21121984 is an abundant number, because the sum of its proper divisors (24963776) is greater than itself. Its abundance is 3841792

Bases of 21121984

Binary: 1010000100100101111000000₂
Hexadecimal: 0x1424BC0
Base-36: CKPTS

Squares and roots of 21121984

21121984 squared (21121984²) is 446138208096256
21121984 cubed (21121984³) is 9423324093197789691904
The square root of 21121984 is 4595.8659684547
The cube root of 21121984 is 276.4255844091

Scales and comparisons

How big is 21121984?

21,121,984 seconds is equal to 34 weeks, 6 days, 11 hours, 13 minutes, 4 seconds.
To count from 1 to 21,121,984 would take you about two 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 21121984 cubic inches would be around 23 feet tall.

Recreational maths with 21121984

21121984 backwards is 48912112
The number of decimal digits it has is: 8
The sum of 21121984's digits is 28
More coming soon!

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The information we have on file for 21121984 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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