21211921724742
21,211,921,724,742 is an even composite number composed of six prime numbers multiplied together.
21211921724742 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21211921724742:
2 × 33 × 7 × 359 × 709 × 220469
(2 × 3 × 3 × 3 × 7 × 359 × 709 × 220469)See below for interesting mathematical facts about the number 21211921724742 from the Numbermatics database.
Names of 21211921724742
- Cardinal: 21211921724742 can be written as Twenty-one trillion, two hundred eleven billion, nine hundred twenty-one million, seven hundred twenty-four thousand, seven hundred forty-two.
Scientific notation
- Scientific notation: 2.1211921724742 × 1013
Factors of 21211921724742
Divisors of 21211921724742
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 6 7 9 14 18 21 27 42 54 63 126 189 359 378 709 718 1077 1418 2127 2154 2513 3231 4254 4963 5026 6381 6462 7539 9693 9926 12762 14889 15078 19143 19386 22617 29778 38286 44667 45234 67851 89334 134001 135702 220469 254531 268002 440938 509062 661407 763593 1322814 1527186 1543283 1781717 1984221 2290779 3086566 3563434 3968442 4581558 4629849 5345151 5952663 6872337 9259698 10690302 11905326 13744674 13889547 16035453 27779094 32070906 41668641 48106359 79148371 83337282 96212718 156312521 158296742 237445113 312625042 468937563 474890226 554038597 712335339 937875126 1094187647 1108077194 1406812689 1424670678 1662115791 2137006017 2188375294 2813625378 3282562941 3324231582 4220438067 4274012034 4986347373 6565125882 8440876134 9847688823 9972694746 14959042119 19695377646 29543066469 29918084238 56116195039 59086132938 112232390078 168348585117 336697170234 392813365273 505045755351 785626730546 1010091510702 1178440095819 1515137266053 2356880191638 3030274532106 3535320287457 7070640574914 10605960862371 21211921724742
- Sum of all divisors σ(n): 54098046720000
- Sum of proper divisors (its aliquot sum) s(n): 32886124995258
- 21211921724742 is an abundant number, because the sum of its proper divisors (32886124995258) is greater than itself. Its abundance is 11674203270516
Bases of 21211921724742
- Binary: 1001101001010110010010000111100110101010001102
- Hexadecimal: 0x134AC90F3546
- Base-36: 7IOMEIP1I
Squares and roots of 21211921724742
- 21211921724742 squared (212119217247422) is 449945623256581624014966564
- 21211921724742 cubed (212119217247423) is 9544211340908863028878652925064341526488
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The
square root of 21211921724742 is 4605640.2079126849 -
The
cube root of 21211921724742 is 27681.7370285819
Scales and comparisons
How big is 21211921724742?- 21,211,921,724,742 seconds is equal to 674,473 years, 25 weeks, 6 days, 7 hours, 5 minutes, 42 seconds.
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To count from 1 to 21,211,921,724,742 would take you about one million, six hundred eighty-six thousand, one hundred eighty-three 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 21211921724742 cubic inches would be around 2306.8 feet tall.
Recreational maths with 21211921724742
- 21211921724742 backwards is 24742712911212
- The number of decimal digits it has is: 14
- The sum of 21211921724742's digits is 45
- More coming soon!
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