21128448
21,128,448 is an even composite number composed of five prime numbers multiplied together.
21128448 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21128448:
28 × 3 × 11 × 41 × 61
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 11 × 41 × 61)See below for interesting mathematical facts about the number 21128448 from the Numbermatics database.
Names of 21128448
- Cardinal: 21128448 can be written as Twenty-one million, one hundred twenty-eight thousand, four hundred forty-eight.
Scientific notation
- Scientific notation: 2.1128448 × 107
Factors of 21128448
Divisors of 21128448
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 6 8 11 12 16 22 24 32 33 41 44 48 61 64 66 82 88 96 122 123 128 132 164 176 183 192 244 246 256 264 328 352 366 384 451 488 492 528 656 671 704 732 768 902 976 984 1056 1312 1342 1353 1408 1464 1804 1952 1968 2013 2112 2501 2624 2684 2706 2816 2928 3608 3904 3936 4026 4224 5002 5248 5368 5412 5856 7216 7503 7808 7872 8052 8448 10004 10496 10736 10824 11712 14432 15006 15616 15744 16104 20008 21472 21648 23424 27511 28864 30012 31488 32208 40016 42944 43296 46848 55022 57728 60024 64416 80032 82533 85888 86592 110044 115456 120048 128832 160064 165066 171776 173184 220088 240096 257664 320128 330132 346368 440176 480192 515328 640256 660264 880352 960384 1320528 1760704 1920768 2641056 3521408 5282112 7042816 10564224 21128448
- Sum of all divisors σ(n): 63870912
- Sum of proper divisors (its aliquot sum) s(n): 42742464
- 21128448 is an abundant number, because the sum of its proper divisors (42742464) is greater than itself. Its abundance is 21614016
Bases of 21128448
- Binary: 10100001001100101000000002
- Hexadecimal: 0x1426500
- Base-36: CKUTC
Squares and roots of 21128448
- 21128448 squared (211284482) is 446411314888704
- 21128448 cubed (211284483) is 9431978253237608251392
-
The
square root of 21128448 is 4596.5691553593 -
The
cube root of 21128448 is 276.4537798779
Scales and comparisons
How big is 21128448?- 21,128,448 seconds is equal to 34 weeks, 6 days, 13 hours, 48 seconds.
-
To count from 1 to 21,128,448 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 21128448 cubic inches would be around 23 feet tall.
Recreational maths with 21128448
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The information we have on file for 21128448 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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