20729909746
20,729,909,746 is an even composite number composed of seven prime numbers multiplied together.
20729909746 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 20729909746:
2 × 7 × 13 × 29 × 312 × 61 × 67
(2 × 7 × 13 × 29 × 31 × 31 × 61 × 67)See below for interesting mathematical facts about the number 20729909746 from the Numbermatics database.
Names of 20729909746
- Cardinal: 20729909746 can be written as Twenty billion, seven hundred twenty-nine million, nine hundred nine thousand, seven hundred forty-six.
Scientific notation
- Scientific notation: 2.0729909746 × 1010
Factors of 20729909746
Divisors of 20729909746
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 7 13 14 26 29 31 58 61 62 67 91 122 134 182 203 217 377 403 406 427 434 469 754 793 806 854 871 899 938 961 1586 1742 1769 1798 1891 1922 1943 2077 2639 2821 3538 3782 3886 4087 4154 5278 5551 5642 6097 6293 6727 8174 11102 11687 12194 12383 12493 12586 13237 13454 13601 14539 22997 23374 24583 24766 24986 25259 26474 27001 27202 27869 28609 29078 45994 49166 50518 53131 54002 54839 55738 57218 58621 60233 64387 81809 87451 106262 109678 117242 118523 120466 126697 128774 160979 163618 172081 174902 176813 189007 195083 237046 253394 321958 344162 353626 362297 371917 378014 383873 390166 410347 421631 450709 712907 724594 743834 762073 767746 783029 820694 829661 837031 843262 886879 901418 1425814 1524146 1540799 1566058 1647061 1659322 1674062 1700009 1773758 1867223 2536079 3081598 3294122 3400018 3674213 3734446 3927607 4990349 5072158 5334511 5481203 5859217 7348426 7855214 9980698 10669022 10785593 10962406 11529427 11718434 11900063 13070561 21571186 22100117 23058854 23800126 24273899 25719491 26141122 27493249 44200234 47764769 48547798 51058891 51438982 54986498 95529538 102117782 113900603 154700819 169917293 227801206 309401638 334353383 339834586 357412237 668706766 714824474 797304221 1480707839 1594608442 2961415678 10364954873 20729909746
- Sum of all divisors σ(n): 42199799040
- Sum of proper divisors (its aliquot sum) s(n): 21469889294
- 20729909746 is an abundant number, because the sum of its proper divisors (21469889294) is greater than itself. Its abundance is 739979548
Bases of 20729909746
- Binary: 100110100111001100101010001111100102
- Hexadecimal: 0x4D39951F2
- Base-36: 9IU1WQA
Squares and roots of 20729909746
- 20729909746 squared (207299097462) is 429729158077305784516
- 20729909746 cubed (207299097463) is 8908246662167115803860404292936
-
The
square root of 20729909746 is 143978.8517317733 -
The
cube root of 20729909746 is 2747.0451897231
Scales and comparisons
How big is 20729909746?- 20,729,909,746 seconds is equal to 659 years, 7 weeks, 4 days, 12 hours, 15 minutes, 46 seconds.
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To count from 1 to 20,729,909,746 would take you about one thousand, three hundred eighteen 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 20729909746 cubic inches would be around 228.9 feet tall.
Recreational maths with 20729909746
- 20729909746 backwards is 64790992702
- The number of decimal digits it has is: 11
- The sum of 20729909746's digits is 55
- More coming soon!
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