21349330821
21,349,330,821 is an odd composite number composed of five prime numbers multiplied together.
21349330821 is an odd 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 21349330821:
32 × 73 × 13 × 31 × 1312
(3 × 3 × 7 × 7 × 7 × 13 × 31 × 131 × 131)See below for interesting mathematical facts about the number 21349330821 from the Numbermatics database.
Names of 21349330821
- Cardinal: 21349330821 can be written as Twenty-one billion, three hundred forty-nine million, three hundred thirty thousand, eight hundred twenty-one.
Scientific notation
- Scientific notation: 2.1349330821 × 1010
Factors of 21349330821
Divisors of 21349330821
- Number of divisors d(n): 144
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Complete list of divisors:
1 3 7 9 13 21 31 39 49 63 91 93 117 131 147 217 273 279 343 393 403 441 637 651 819 917 1029 1179 1209 1519 1703 1911 1953 2751 2821 3087 3627 4061 4459 4557 5109 5733 6419 8253 8463 10633 11921 12183 13377 13671 15327 17161 19257 19747 25389 28427 31899 35763 36549 40131 44933 51483 52793 57771 59241 83447 85281 95697 107289 120127 134799 138229 154449 158379 177723 198989 223093 250341 255843 360381 369551 404397 414687 475137 531991 584129 596967 669279 751023 840889 1081143 1108653 1244061 1392923 1561651 1595973 1752387 1790901 2007837 2522667 2586857 3325959 3723937 4178769 4684953 4787919 5257161 5886223 6915883 7568001 7760571 10931557 11171811 12536307 14054859 17658669 18107999 20747649 23281713 26067559 32794671 33515433 48411181 52976007 54323997 62242947 76520899 78202677 98384013 145233543 162971991 182472913 229562697 234608031 338878267 435700629 547418739 688688091 1016634801 1642256217 2372147869 3049904403 7116443607 21349330821
- Sum of all divisors σ(n): 40285772800
- Sum of proper divisors (its aliquot sum) s(n): 18936441979
- 21349330821 is a deficient number, because the sum of its proper divisors (18936441979) is less than itself. Its deficiency is 2412888842
Bases of 21349330821
- Binary: 100111110001000010011101111100001012
- Hexadecimal: 0x4F884EF85
- Base-36: 9T2U939
Squares and roots of 21349330821
- 21349330821 squared (213493308212) is 455793926504500534041
- 21349330821 cubed (213493308213) is 9730895323147142046612480977661
-
The
square root of 21349330821 is 146114.1020606841 -
The
cube root of 21349330821 is 2774.1381765909
Scales and comparisons
How big is 21349330821?- 21,349,330,821 seconds is equal to 678 years, 43 weeks, 5 days, 17 hours, 40 minutes, 21 seconds.
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To count from 1 to 21,349,330,821 would take you about one thousand, three hundred fifty-seven 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 21349330821 cubic inches would be around 231.2 feet tall.
Recreational maths with 21349330821
- 21349330821 backwards is 12803394312
- The number of decimal digits it has is: 11
- The sum of 21349330821's digits is 36
- More coming soon!
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The information we have on file for 21349330821 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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