81268308342
81,268,308,342 is an even composite number composed of seven prime numbers multiplied together.
81268308342 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 81268308342:
2 × 33 × 13 × 17 × 37 × 41 × 672
(2 × 3 × 3 × 3 × 13 × 17 × 37 × 41 × 67 × 67)See below for interesting mathematical facts about the number 81268308342 from the Numbermatics database.
Names of 81268308342
- Cardinal: 81268308342 can be written as Eighty-one billion, two hundred sixty-eight million, three hundred eight thousand, three hundred forty-two.
Scientific notation
- Scientific notation: 8.1268308342 × 1010
Factors of 81268308342
Divisors of 81268308342
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 6 9 13 17 18 26 27 34 37 39 41 51 54 67 74 78 82 102 111 117 123 134 153 201 221 222 234 246 306 333 351 369 402 442 459 481 533 603 629 663 666 697 702 738 871 918 962 999 1066 1107 1139 1206 1258 1326 1394 1443 1517 1599 1742 1809 1887 1989 1998 2091 2214 2278 2479 2613 2747 2886 3034 3198 3417 3618 3774 3978 4182 4329 4489 4551 4797 4958 5226 5494 5661 5967 6273 6834 7437 7839 8177 8241 8658 8978 9061 9102 9594 10251 11322 11934 12546 12987 13467 13653 14391 14807 14874 15678 16354 16482 16983 18122 18819 19721 20502 22311 23517 24531 24723 25789 25974 26934 27183 27306 28782 29614 30753 32227 33966 35711 37638 39442 40401 40959 42143 44421 44622 46699 47034 49062 49446 51578 54366 58357 59163 61506 64454 66933 71422 73593 74169 76313 77367 80802 81549 81918 84286 88842 93398 96681 101639 107133 116714 118326 121203 126429 133263 133866 140097 147186 148338 152626 154734 163098 166093 175071 177489 184049 193362 203278 214266 220779 228939 232101 242406 244647 252858 266526 280194 290043 304917 321399 332186 335257 350142 354978 368098 379287 399789 420291 441558 457878 464202 489294 498279 525213 532467 547859 552147 580086 607087 609834 642798 670514 686817 696303 758574 799578 840582 870129 914751 964197 992069 996558 1005771 1050426 1064934 1095718 1104294 1137861 1214174 1260873 1321307 1373634 1392606 1494837 1575639 1643577 1656441 1727863 1740258 1821261 1829502 1928394 1984138 2011542 2060451 2159209 2275722 2392637 2521746 2642614 2744253 2823581 2976207 2989674 3017313 3128833 3151278 3287154 3312882 3455726 3642522 3963921 4120902 4318418 4484511 4785274 4930731 4969323 5183589 5463783 5488506 5647162 5952414 6034626 6257666 6477627 6809813 7177911 7927842 8470743 8928621 8969022 9051939 9386499 9861462 9938646 10367178 10927566 11891763 12955254 13619626 14355822 14792193 15550767 16391349 16941486 17857242 18103878 18772998 19432881 20429439 21533733 22462219 23783526 25412229 26785863 28159497 29584386 31101534 32782698 35675289 36706553 38865762 40674829 40858878 43067466 44924438 46652301 50824458 53571726 56318994 58298643 61288317 64601199 67386657 71350578 73413106 76236687 81349658 84478491 88527569 93304602 110119659 115766821 116597286 122024487 122576634 129202398 134773314 152473374 168956982 177055138 183864951 202159971 220239318 231533642 244048974 265582707 330358977 347300463 366073461 367729902 404319942 531165414 606479913 660717954 694600926 732146922 796748121 991076931 1041901389 1098220383 1212959826 1504968673 1593496242 1982153862 2083802778 2196440766 2390244363 3009937346 3125704167 4514906019 4780488726 6251408334 9029812038 13544718057 27089436114 40634154171 81268308342
- Sum of all divisors σ(n): 219934673280
- Sum of proper divisors (its aliquot sum) s(n): 138666364938
- 81268308342 is an abundant number, because the sum of its proper divisors (138666364938) is greater than itself. Its abundance is 57398056596
Bases of 81268308342
- Binary: 10010111010111111011111111001011101102
- Hexadecimal: 0x12EBF7F976
- Base-36: 11C11W1I
Squares and roots of 81268308342
- 81268308342 squared (812683083422) is 6604537940770386788964
- 81268308342 cubed (812683083423) is 536739625826965526588129634737688
-
The
square root of 81268308342 is 285075.9694221875 -
The
cube root of 81268308342 is 4331.5208233347
Scales and comparisons
How big is 81268308342?- 81,268,308,342 seconds is equal to 2,584 years, 4 weeks, 1 day, 10 hours, 5 minutes, 42 seconds.
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To count from 1 to 81,268,308,342 would take you about five thousand, one hundred sixty-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 81268308342 cubic inches would be around 361 feet tall.
Recreational maths with 81268308342
- 81268308342 backwards is 24380386218
- The number of decimal digits it has is: 11
- The sum of 81268308342's digits is 45
- More coming soon!
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