21006906816
21,006,906,816 is an even composite number composed of five prime numbers multiplied together.
21006906816 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 21006906816:
26 × 3 × 72 × 449 × 4973
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 7 × 449 × 4973)See below for interesting mathematical facts about the number 21006906816 from the Numbermatics database.
Names of 21006906816
- Cardinal: 21006906816 can be written as Twenty-one billion, six million, nine hundred six thousand, eight hundred sixteen.
Scientific notation
- Scientific notation: 2.1006906816 × 1010
Factors of 21006906816
Divisors of 21006906816
- Number of divisors d(n): 168
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 84 96 98 112 147 168 192 196 224 294 336 392 448 449 588 672 784 898 1176 1344 1347 1568 1796 2352 2694 3136 3143 3592 4704 4973 5388 6286 7184 9408 9429 9946 10776 12572 14368 14919 18858 19892 21552 22001 25144 28736 29838 34811 37716 39784 43104 44002 50288 59676 66003 69622 75432 79568 86208 88004 100576 104433 119352 132006 139244 150864 159136 176008 201152 208866 238704 243677 264012 278488 301728 318272 352016 417732 477408 487354 528024 556976 603456 704032 731031 835464 954816 974708 1056048 1113952 1408064 1462062 1670928 1949416 2112096 2227904 2232877 2924124 3341856 3898832 4224192 4465754 5848248 6683712 6698631 7797664 8931508 11696496 13397262 15595328 15630139 17863016 23392992 26794524 31260278 35726032 46785984 46890417 53589048 62520556 71452064 93780834 107178096 109410973 125041112 142904128 187561668 214356192 218821946 250082224 328232919 375123336 428712384 437643892 500164448 656465838 750246672 875287784 1000328896 1312931676 1500493344 1750575568 2625863352 3000986688 3501151136 5251726704 7002302272 10503453408 21006906816
- Sum of all divisors σ(n): 64812214800
- Sum of proper divisors (its aliquot sum) s(n): 43805307984
- 21006906816 is an abundant number, because the sum of its proper divisors (43805307984) is greater than itself. Its abundance is 22798401168
Bases of 21006906816
- Binary: 100111001000001101111110101110000002
- Hexadecimal: 0x4E41BF5C0
- Base-36: 9NEYX1C
Squares and roots of 21006906816
- 21006906816 squared (210069068162) is 441290133976107257856
- 21006906816 cubed (210069068163) is 9270140723256240736202275946496
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The
square root of 21006906816 is 144937.5962819861 -
The
cube root of 21006906816 is 2759.2266096025
Scales and comparisons
How big is 21006906816?- 21,006,906,816 seconds is equal to 667 years, 49 weeks, 4 days, 11 hours, 53 minutes, 36 seconds.
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To count from 1 to 21,006,906,816 would take you about one thousand, three hundred thirty-five years!
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 21006906816 cubic inches would be around 229.9 feet tall.
Recreational maths with 21006906816
- 21006906816 backwards is 61860960012
- The number of decimal digits it has is: 11
- The sum of 21006906816's digits is 39
- More coming soon!
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"Number 21006906816 - Facts about the integer". Numbermatics.com. 2024. Web. 9 May 2024.
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The information we have on file for 21006906816 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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