21064721328
21,064,721,328 is an even composite number composed of four prime numbers multiplied together.
21064721328 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 21064721328:
24 × 35 × 72 × 110569
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 7 × 7 × 110569)See below for interesting mathematical facts about the number 21064721328 from the Numbermatics database.
Names of 21064721328
- Cardinal: 21064721328 can be written as Twenty-one billion, sixty-four million, seven hundred twenty-one thousand, three hundred twenty-eight.
Scientific notation
- Scientific notation: 2.1064721328 × 1010
Factors of 21064721328
Divisors of 21064721328
- Number of divisors d(n): 180
-
Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 49 54 56 63 72 81 84 98 108 112 126 144 147 162 168 189 196 216 243 252 294 324 336 378 392 432 441 486 504 567 588 648 756 784 882 972 1008 1134 1176 1296 1323 1512 1701 1764 1944 2268 2352 2646 3024 3402 3528 3888 3969 4536 5292 6804 7056 7938 9072 10584 11907 13608 15876 21168 23814 27216 31752 47628 63504 95256 110569 190512 221138 331707 442276 663414 773983 884552 995121 1326828 1547966 1769104 1990242 2321949 2653656 2985363 3095932 3980484 4643898 5307312 5417881 5970726 6191864 6965847 7960968 8956089 9287796 10835762 11941452 12383728 13931694 15921936 16253643 17912178 18575592 20897541 21671524 23882904 26868267 27863388 32507286 35824356 37151184 41795082 43343048 47765808 48760929 53736534 55726776 62692623 65014572 71648712 83590164 86686096 97521858 107473068 111453552 125385246 130029144 143297424 146282787 167180328 188077869 195043716 214946136 250770492 260058288 292565574 334360656 376155738 390087432 429892272 438848361 501540984 585131148 752311476 780174864 877696722 1003081968 1170262296 1316545083 1504622952 1755393444 2340524592 2633090166 3009245904 3510786888 5266180332 7021573776 10532360664 21064721328
- Sum of all divisors σ(n): 71117297160
- Sum of proper divisors (its aliquot sum) s(n): 50052575832
- 21064721328 is an abundant number, because the sum of its proper divisors (50052575832) is greater than itself. Its abundance is 28987854504
Bases of 21064721328
- Binary: 100111001111000111000100011101100002
- Hexadecimal: 0x4E78E23B0
- Base-36: 9ODE300
Squares and roots of 21064721328
- 21064721328 squared (210647213282) is 443722484626298083584
- 21064721328 cubed (210647213283) is 9346890485620733350957411479552
-
The
square root of 21064721328 is 145136.9054651505 -
The
cube root of 21064721328 is 2761.7555749523
Scales and comparisons
How big is 21064721328?- 21,064,721,328 seconds is equal to 669 years, 41 weeks, 1 day, 15 hours, 28 minutes, 48 seconds.
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To count from 1 to 21,064,721,328 would take you about one thousand, three hundred thirty-nine 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 21064721328 cubic inches would be around 230.1 feet tall.
Recreational maths with 21064721328
- 21064721328 backwards is 82312746012
- 21064721328 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21064721328's digits is 36
- More coming soon!
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