21091250

21,091,250 is an even composite number composed of four prime numbers multiplied together.

What does the number 21091250 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 40 divisors.

21091250 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 21091250:

2 × 5⁴ × 47 × 359

(2 × 5 × 5 × 5 × 5 × 47 × 359)

See below for interesting mathematical facts about the number 21091250 from the Numbermatics database.

Names of 21091250

Cardinal: 21091250 can be written as Twenty-one million, ninety-one thousand, two hundred fifty.

Scientific notation

Scientific notation: 2.109125 × 10⁷

Factors of 21091250

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 413

Divisors of 21091250

Number of divisors d(n): 40
Complete list of divisors:
1 2 5 10 25 47 50 94 125 235 250 359 470 625 718 1175 1250 1795 2350 3590 5875 8975 11750 16873 17950 29375 33746 44875 58750 84365 89750 168730 224375 421825 448750 843650 2109125 4218250 10545625 21091250
Sum of all divisors σ(n): 40487040
Sum of proper divisors (its aliquot sum) s(n): 19395790
21091250 is a deficient number, because the sum of its proper divisors (19395790) is less than itself. Its deficiency is 1695460

Bases of 21091250

Binary: 1010000011101001110110010₂
Hexadecimal: 0x141D3B2
Base-36: CK242

Squares and roots of 21091250

21091250 squared (21091250²) is 444840826562500
21091250 cubed (21091250³) is 9382249083236328125000
The square root of 21091250 is 4592.5210941269
The cube root of 21091250 is 276.2914463179

Scales and comparisons

How big is 21091250?

21,091,250 seconds is equal to 34 weeks, 6 days, 2 hours, 40 minutes, 50 seconds.
To count from 1 to 21,091,250 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 21091250 cubic inches would be around 23 feet tall.

Recreational maths with 21091250

21091250 backwards is 05219012
The number of decimal digits it has is: 8
The sum of 21091250's digits is 20
More coming soon!

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The information we have on file for 21091250 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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