21210520464
21,210,520,464 is an even composite number composed of four prime numbers multiplied together.
21210520464 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 21210520464:
24 × 33 × 7 × 7014061
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 7 × 7014061)See below for interesting mathematical facts about the number 21210520464 from the Numbermatics database.
Names of 21210520464
- Cardinal: 21210520464 can be written as Twenty-one billion, two hundred ten million, five hundred twenty thousand, four hundred sixty-four.
Scientific notation
- Scientific notation: 2.1210520464 × 1010
Factors of 21210520464
Divisors of 21210520464
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 54 56 63 72 84 108 112 126 144 168 189 216 252 336 378 432 504 756 1008 1512 3024 7014061 14028122 21042183 28056244 42084366 49098427 56112488 63126549 84168732 98196854 112224976 126253098 147295281 168337464 189379647 196393708 252506196 294590562 336674928 378759294 392787416 441885843 505012392 589181124 757518588 785574832 883771686 1010024784 1178362248 1325657529 1515037176 1767543372 2356724496 2651315058 3030074352 3535086744 5302630116 7070173488 10605260232 21210520464
- Sum of all divisors σ(n): 69579495040
- Sum of proper divisors (its aliquot sum) s(n): 48368974576
- 21210520464 is an abundant number, because the sum of its proper divisors (48368974576) is greater than itself. Its abundance is 27158454112
Bases of 21210520464
- Binary: 100111100000011111011011011100100002
- Hexadecimal: 0x4F03EDB90
- Base-36: 9QS72C0
Squares and roots of 21210520464
- 21210520464 squared (212105204642) is 449886178353762775296
- 21210520464 cubed (212105204643) is 9542319992443239176817241657344
-
The
square root of 21210520464 is 145638.3207263803 -
The
cube root of 21210520464 is 2768.1127462791
Scales and comparisons
How big is 21210520464?- 21,210,520,464 seconds is equal to 674 years, 22 weeks, 2 days, 3 hours, 14 minutes, 24 seconds.
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To count from 1 to 21,210,520,464 would take you about one thousand, three hundred forty-eight 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 21210520464 cubic inches would be around 230.7 feet tall.
Recreational maths with 21210520464
- 21210520464 backwards is 46402501212
- 21210520464 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21210520464's digits is 27
- More coming soon!
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