21188128
21,188,128 is an even composite number composed of four prime numbers multiplied together.
What does the number 21188128 look like?
This visualization shows the relationship between its 4 prime factors (large circles) and 72 divisors.
21188128 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21188128:
25 × 13 × 312 × 53
(2 × 2 × 2 × 2 × 2 × 13 × 31 × 31 × 53)See below for interesting mathematical facts about the number 21188128 from the Numbermatics database.
Names of 21188128
- Cardinal: 21188128 can be written as Twenty-one million, one hundred eighty-eight thousand, one hundred twenty-eight.
Scientific notation
- Scientific notation: 2.1188128 × 107
Factors of 21188128
Divisors of 21188128
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 4 8 13 16 26 31 32 52 53 62 104 106 124 208 212 248 403 416 424 496 689 806 848 961 992 1378 1612 1643 1696 1922 2756 3224 3286 3844 5512 6448 6572 7688 11024 12493 12896 13144 15376 21359 22048 24986 26288 30752 42718 49972 50933 52576 85436 99944 101866 170872 199888 203732 341744 399776 407464 662129 683488 814928 1324258 1629856 2648516 5297032 10594064 21188128
- Sum of all divisors σ(n): 47294604
- Sum of proper divisors (its aliquot sum) s(n): 26106476
- 21188128 is an abundant number, because the sum of its proper divisors (26106476) is greater than itself. Its abundance is 4918348
Bases of 21188128
- Binary: 10100001101001110001000002
- Hexadecimal: 0x1434E20
- Base-36: CM4V4
Squares and roots of 21188128
- 21188128 squared (211881282) is 448936768144384
- 21188128 cubed (211881283) is 9512129707349530673152
-
The
square root of 21188128 is 4603.0563759311 -
The
cube root of 21188128 is 276.7138281887
Scales and comparisons
How big is 21188128?- 21,188,128 seconds is equal to 35 weeks, 5 hours, 35 minutes, 28 seconds.
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To count from 1 to 21,188,128 would take you about three 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 21188128 cubic inches would be around 23.1 feet tall.
Recreational maths with 21188128
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"Number 21188128 - Facts about the integer". Numbermatics.com. 2024. Web. 2 May 2024.
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The information we have on file for 21188128 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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