21406720
21,406,720 is an even composite number composed of four prime numbers multiplied together.
What does the number 21406720 look like?
This visualization shows the relationship between its 4 prime factors (large circles) and 88 divisors.
21406720 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty-eight divisors.
Prime factorization of 21406720:
210 × 5 × 37 × 113
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 37 × 113)See below for interesting mathematical facts about the number 21406720 from the Numbermatics database.
Names of 21406720
- Cardinal: 21406720 can be written as Twenty-one million, four hundred six thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.140672 × 107
Factors of 21406720
Divisors of 21406720
- Number of divisors d(n): 88
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Complete list of divisors:
1 2 4 5 8 10 16 20 32 37 40 64 74 80 113 128 148 160 185 226 256 296 320 370 452 512 565 592 640 740 904 1024 1130 1184 1280 1480 1808 2260 2368 2560 2960 3616 4181 4520 4736 5120 5920 7232 8362 9040 9472 11840 14464 16724 18080 18944 20905 23680 28928 33448 36160 37888 41810 47360 57856 66896 72320 83620 94720 115712 133792 144640 167240 189440 267584 289280 334480 535168 578560 668960 1070336 1337920 2140672 2675840 4281344 5351680 10703360 21406720
- Sum of all divisors σ(n): 53205624
- Sum of proper divisors (its aliquot sum) s(n): 31798904
- 21406720 is an abundant number, because the sum of its proper divisors (31798904) is greater than itself. Its abundance is 10392184
Bases of 21406720
- Binary: 10100011010100100000000002
- Hexadecimal: 0x146A400
- Base-36: CQTJ4
Squares and roots of 21406720
- 21406720 squared (214067202) is 458247661158400
- 21406720 cubed (214067203) is 9809579373072744448000
-
The
square root of 21406720 is 4626.7396728149 -
The
cube root of 21406720 is 277.6621674751
Scales and comparisons
How big is 21406720?- 21,406,720 seconds is equal to 35 weeks, 2 days, 18 hours, 18 minutes, 40 seconds.
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To count from 1 to 21,406,720 would take you about fifteen 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 21406720 cubic inches would be around 23.1 feet tall.
Recreational maths with 21406720
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"Number 21406720 - Facts about the integer". Numbermatics.com. 2024. Web. 9 May 2024.
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The information we have on file for 21406720 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!
Keywords: Divisors of 21406720, math, Factors of 21406720, curriculum, school, college, exams, university, Prime factorization of 21406720, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, four hundred six thousand, seven hundred twenty.