21468750

21,468,750 is an even composite number composed of four prime numbers multiplied together.

What does the number 21468750 look like?

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

21468750 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 21468750:

2 × 3 × 5⁶ × 229

(2 × 3 × 5 × 5 × 5 × 5 × 5 × 5 × 229)

See below for interesting mathematical facts about the number 21468750 from the Numbermatics database.

Names of 21468750

Cardinal: 21468750 can be written as Twenty-one million, four hundred sixty-eight thousand, seven hundred fifty.

Scientific notation

Scientific notation: 2.146875 × 10⁷

Factors of 21468750

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 9
Sum of prime factors: 239

Divisors of 21468750

Number of divisors d(n): 56
Complete list of divisors:
1 2 3 5 6 10 15 25 30 50 75 125 150 229 250 375 458 625 687 750 1145 1250 1374 1875 2290 3125 3435 3750 5725 6250 6870 9375 11450 15625 17175 18750 28625 31250 34350 46875 57250 85875 93750 143125 171750 286250 429375 715625 858750 1431250 2146875 3578125 4293750 7156250 10734375 21468750
Sum of all divisors σ(n): 53905560
Sum of proper divisors (its aliquot sum) s(n): 32436810
21468750 is an abundant number, because the sum of its proper divisors (32436810) is greater than itself. Its abundance is 10968060

Bases of 21468750

Binary: 1010001111001011001001110₂
Hexadecimal: 0x147964E
Base-36: CS5E6

Squares and roots of 21468750

21468750 squared (21468750²) is 460907226562500
21468750 cubed (21468750³) is 9895102020263671875000
The square root of 21468750 is 4633.4382482127
The cube root of 21468750 is 277.9301016409

Scales and comparisons

How big is 21468750?

21,468,750 seconds is equal to 35 weeks, 3 days, 11 hours, 32 minutes, 30 seconds.
To count from 1 to 21,468,750 would take you about seventeen 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 21468750 cubic inches would be around 23.2 feet tall.

Recreational maths with 21468750

21468750 backwards is 05786412
The number of decimal digits it has is: 8
The sum of 21468750's digits is 33
More coming soon!

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The information we have on file for 21468750 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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