21054864
21,054,864 is an even composite number composed of four prime numbers multiplied together.
21054864 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty divisors.
Prime factorization of 21054864:
24 × 3 × 43 × 1012
(2 × 2 × 2 × 2 × 3 × 43 × 101 × 101)See below for interesting mathematical facts about the number 21054864 from the Numbermatics database.
Names of 21054864
- Cardinal: 21054864 can be written as Twenty-one million, fifty-four thousand, eight hundred sixty-four.
Scientific notation
- Scientific notation: 2.1054864 × 107
Factors of 21054864
Divisors of 21054864
- Number of divisors d(n): 60
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Complete list of divisors:
1 2 3 4 6 8 12 16 24 43 48 86 101 129 172 202 258 303 344 404 516 606 688 808 1032 1212 1616 2064 2424 4343 4848 8686 10201 13029 17372 20402 26058 30603 34744 40804 52116 61206 69488 81608 104232 122412 163216 208464 244824 438643 489648 877286 1315929 1754572 2631858 3509144 5263716 7018288 10527432 21054864
- Sum of all divisors σ(n): 56213168
- Sum of proper divisors (its aliquot sum) s(n): 35158304
- 21054864 is an abundant number, because the sum of its proper divisors (35158304) is greater than itself. Its abundance is 14103440
Bases of 21054864
- Binary: 10100000101000101100100002
- Hexadecimal: 0x1414590
- Base-36: CJA1C
Squares and roots of 21054864
- 21054864 squared (210548642) is 443307298058496
- 21054864 cubed (210548643) is 9333774870829097324544
-
The
square root of 21054864 is 4588.5579434067 -
The
cube root of 21054864 is 276.1324715893
Scales and comparisons
How big is 21054864?- 21,054,864 seconds is equal to 34 weeks, 5 days, 16 hours, 34 minutes, 24 seconds.
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To count from 1 to 21,054,864 would take you about twelve 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 21054864 cubic inches would be around 23 feet tall.
Recreational maths with 21054864
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