21168144
21,168,144 is an even composite number composed of five prime numbers multiplied together.
21168144 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 21168144:
24 × 32 × 29 × 37 × 137
(2 × 2 × 2 × 2 × 3 × 3 × 29 × 37 × 137)See below for interesting mathematical facts about the number 21168144 from the Numbermatics database.
Names of 21168144
- Cardinal: 21168144 can be written as Twenty-one million, one hundred sixty-eight thousand, one hundred forty-four.
Scientific notation
- Scientific notation: 2.1168144 × 107
Factors of 21168144
Divisors of 21168144
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 29 36 37 48 58 72 74 87 111 116 137 144 148 174 222 232 261 274 296 333 348 411 444 464 522 548 592 666 696 822 888 1044 1073 1096 1233 1332 1392 1644 1776 2088 2146 2192 2466 2664 3219 3288 3973 4176 4292 4932 5069 5328 6438 6576 7946 8584 9657 9864 10138 11919 12876 15207 15892 17168 19314 19728 20276 23838 25752 30414 31784 35757 38628 40552 45621 47676 51504 60828 63568 71514 77256 81104 91242 95352 121656 143028 147001 154512 182484 190704 243312 286056 294002 364968 441003 572112 588004 729936 882006 1176008 1323009 1764012 2352016 2646018 3528024 5292036 7056048 10584072 21168144
- Sum of all divisors σ(n): 63399960
- Sum of proper divisors (its aliquot sum) s(n): 42231816
- 21168144 is an abundant number, because the sum of its proper divisors (42231816) is greater than itself. Its abundance is 21063672
Bases of 21168144
- Binary: 10100001100000000000100002
- Hexadecimal: 0x1430010
- Base-36: CLPG0
Squares and roots of 21168144
- 21168144 squared (211681442) is 448090320404736
- 21168144 cubed (211681443) is 9485240427333589929984
-
The
square root of 21168144 is 4600.8851322327 -
The
cube root of 21168144 is 276.6268047923
Scales and comparisons
How big is 21168144?- 21,168,144 seconds is equal to 35 weeks, 2 minutes, 24 seconds.
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To count from 1 to 21,168,144 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 21168144 cubic inches would be around 23.1 feet tall.
Recreational maths with 21168144
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The information we have on file for 21168144 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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