21421220520
21,421,220,520 is an even composite number composed of six prime numbers multiplied together.
21421220520 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 21421220520:
23 × 3 × 5 × 7 × 197 × 129449
(2 × 2 × 2 × 3 × 5 × 7 × 197 × 129449)See below for interesting mathematical facts about the number 21421220520 from the Numbermatics database.
Names of 21421220520
- Cardinal: 21421220520 can be written as Twenty-one billion, four hundred twenty-one million, two hundred twenty thousand, five hundred twenty.
Scientific notation
- Scientific notation: 2.142122052 × 1010
Factors of 21421220520
Divisors of 21421220520
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 197 210 280 394 420 591 788 840 985 1182 1379 1576 1970 2364 2758 2955 3940 4137 4728 5516 5910 6895 7880 8274 11032 11820 13790 16548 20685 23640 27580 33096 41370 55160 82740 129449 165480 258898 388347 517796 647245 776694 906143 1035592 1294490 1553388 1812286 1941735 2588980 2718429 3106776 3624572 3883470 4530715 5177960 5436858 7249144 7766940 9061430 10873716 13592145 15533880 18122860 21747432 25501453 27184290 36245720 51002906 54368580 76504359 102005812 108737160 127507265 153008718 178510171 204011624 255014530 306017436 357020342 382521795 510029060 535530513 612034872 714040684 765043590 892550855 1020058120 1071061026 1428081368 1530087180 1785101710 2142122052 2677652565 3060174360 3570203420 4284244104 5355305130 7140406840 10710610260 21421220520
- Sum of all divisors σ(n): 73817568000
- Sum of proper divisors (its aliquot sum) s(n): 52396347480
- 21421220520 is an abundant number, because the sum of its proper divisors (52396347480) is greater than itself. Its abundance is 30975126960
Bases of 21421220520
- Binary: 100111111001100110111100010101010002
- Hexadecimal: 0x4FCCDE2A8
- Base-36: 9U9N3JC
Squares and roots of 21421220520
- 21421220520 squared (214212205202) is 458868688566469070400
- 21421220520 cubed (214212205203) is 9829527367505536634797804608000
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The
square root of 21421220520 is 146359.9006558833 -
The
cube root of 21421220520 is 2777.2484774651
Scales and comparisons
How big is 21421220520?- 21,421,220,520 seconds is equal to 681 years, 6 weeks, 4 days, 19 hours, 2 minutes.
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To count from 1 to 21,421,220,520 would take you about one thousand, three hundred sixty-two 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 21421220520 cubic inches would be around 231.4 feet tall.
Recreational maths with 21421220520
- 21421220520 backwards is 02502212412
- 21421220520 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21421220520's digits is 21
- More coming soon!
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The information we have on file for 21421220520 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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