21492864
21,492,864 is an even composite number composed of three prime numbers multiplied together.
21492864 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21492864:
27 × 35 × 691
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 691)See below for interesting mathematical facts about the number 21492864 from the Numbermatics database.
Names of 21492864
- Cardinal: 21492864 can be written as Twenty-one million, four hundred ninety-two thousand, eight hundred sixty-four.
Scientific notation
- Scientific notation: 2.1492864 × 107
Factors of 21492864
Divisors of 21492864
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 243 288 324 384 432 486 576 648 691 864 972 1152 1296 1382 1728 1944 2073 2592 2764 3456 3888 4146 5184 5528 6219 7776 8292 10368 11056 12438 15552 16584 18657 22112 24876 31104 33168 37314 44224 49752 55971 66336 74628 88448 99504 111942 132672 149256 167913 199008 223884 265344 298512 335826 398016 447768 597024 671652 796032 895536 1194048 1343304 1791072 2388096 2686608 3582144 5373216 7164288 10746432 21492864
- Sum of all divisors σ(n): 64231440
- Sum of proper divisors (its aliquot sum) s(n): 42738576
- 21492864 is an abundant number, because the sum of its proper divisors (42738576) is greater than itself. Its abundance is 21245712
Bases of 21492864
- Binary: 10100011111110100100000002
- Hexadecimal: 0x147F480
- Base-36: CSO00
Squares and roots of 21492864
- 21492864 squared (214928642) is 461943202922496
- 21492864 cubed (214928643) is 9928482436137609068544
-
The
square root of 21492864 is 4636.0396892175 -
The
cube root of 21492864 is 278.0341210297
Scales and comparisons
How big is 21492864?- 21,492,864 seconds is equal to 35 weeks, 3 days, 18 hours, 14 minutes, 24 seconds.
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To count from 1 to 21,492,864 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 21492864 cubic inches would be around 23.2 feet tall.
Recreational maths with 21492864
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The information we have on file for 21492864 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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