21428226
21,428,226 is an even composite number composed of four prime numbers multiplied together.
What does the number 21428226 look like?
This visualization shows the relationship between its 4 prime factors (large circles) and 72 divisors.
21428226 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 21428226:
2 × 38 × 23 × 71
(2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 23 × 71)See below for interesting mathematical facts about the number 21428226 from the Numbermatics database.
Names of 21428226
- Cardinal: 21428226 can be written as Twenty-one million, four hundred twenty-eight thousand, two hundred twenty-six.
Scientific notation
- Scientific notation: 2.1428226 × 107
Factors of 21428226
Divisors of 21428226
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 6 9 18 23 27 46 54 69 71 81 138 142 162 207 213 243 414 426 486 621 639 729 1242 1278 1458 1633 1863 1917 2187 3266 3726 3834 4374 4899 5589 5751 6561 9798 11178 11502 13122 14697 16767 17253 29394 33534 34506 44091 50301 51759 88182 100602 103518 132273 150903 155277 264546 301806 310554 396819 465831 793638 931662 1190457 2380914 3571371 7142742 10714113 21428226
- Sum of all divisors σ(n): 51015744
- Sum of proper divisors (its aliquot sum) s(n): 29587518
- 21428226 is an abundant number, because the sum of its proper divisors (29587518) is greater than itself. Its abundance is 8159292
Bases of 21428226
- Binary: 10100011011111000000000102
- Hexadecimal: 0x146F802
- Base-36: CRA4I
Squares and roots of 21428226
- 21428226 squared (214282262) is 459168869507076
- 21428226 cubed (214282263) is 9839174307962133127176
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The
square root of 21428226 is 4629.0631881623 -
The
cube root of 21428226 is 277.7551196571
Scales and comparisons
How big is 21428226?- 21,428,226 seconds is equal to 35 weeks, 3 days, 17 minutes, 6 seconds.
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To count from 1 to 21,428,226 would take you about twenty-five minutes!
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 21428226 cubic inches would be around 23.1 feet tall.
Recreational maths with 21428226
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"Number 21428226 - Facts about the integer". Numbermatics.com. 2024. Web. 13 November 2024.
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Numbermatics. (2024). Number 21428226 - Facts about the integer. Retrieved 13 November 2024, from https://numbermatics.com/n/21428226/
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The information we have on file for 21428226 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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