21982875

21,982,875 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21982875 look like?

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

21982875 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21982875:

3 × 5³ × 31² × 61

(3 × 5 × 5 × 5 × 31 × 31 × 61)

See below for interesting mathematical facts about the number 21982875 from the Numbermatics database.

Names of 21982875

Cardinal: 21982875 can be written as Twenty-one million, nine hundred eighty-two thousand, eight hundred seventy-five.

Scientific notation

Scientific notation: 2.1982875 × 10⁷

Factors of 21982875

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 100

Divisors of 21982875

Number of divisors d(n): 48
Complete list of divisors:
1 3 5 15 25 31 61 75 93 125 155 183 305 375 465 775 915 961 1525 1891 2325 2883 3875 4575 4805 5673 7625 9455 11625 14415 22875 24025 28365 47275 58621 72075 120125 141825 175863 236375 293105 360375 709125 879315 1465525 4396575 7327625 21982875
Sum of all divisors σ(n): 38417184
Sum of proper divisors (its aliquot sum) s(n): 16434309
21982875 is a deficient number, because the sum of its proper divisors (16434309) is less than itself. Its deficiency is 5548566

Bases of 21982875

Binary: 1010011110110111010011011₂
Hexadecimal: 0x14F6E9B
Base-36: D363F

Squares and roots of 21982875

21982875 squared (21982875²) is 483246793265625
21982875 cubed (21982875³) is 10623153850509076171875
The square root of 21982875 is 4688.5898732987
The cube root of 21982875 is 280.1312097631

Scales and comparisons

How big is 21982875?

21,982,875 seconds is equal to 36 weeks, 2 days, 10 hours, 21 minutes, 15 seconds.
To count from 1 to 21,982,875 would take you about two weeks!

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 21982875 cubic inches would be around 23.3 feet tall.

Recreational maths with 21982875

21982875 backwards is 57828912
The number of decimal digits it has is: 8
The sum of 21982875's digits is 42
More coming soon!

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The information we have on file for 21982875 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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