81642131712
81,642,131,712 is an even composite number composed of five prime numbers multiplied together.
81642131712 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of five hundred forty divisors.
Prime factorization of 81642131712:
28 × 34 × 17 × 312 × 241
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 17 × 31 × 31 × 241)See below for interesting mathematical facts about the number 81642131712 from the Numbermatics database.
Names of 81642131712
- Cardinal: 81642131712 can be written as Eighty-one billion, six hundred forty-two million, one hundred thirty-one thousand, seven hundred twelve.
Scientific notation
- Scientific notation: 8.1642131712 × 1010
Factors of 81642131712
Divisors of 81642131712
- Number of divisors d(n): 540
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 17 18 24 27 31 32 34 36 48 51 54 62 64 68 72 81 93 96 102 108 124 128 136 144 153 162 186 192 204 216 241 248 256 272 279 288 306 324 372 384 408 432 459 482 496 527 544 558 576 612 648 723 744 768 816 837 864 918 961 964 992 1054 1088 1116 1152 1224 1296 1377 1446 1488 1581 1632 1674 1728 1836 1922 1928 1984 2108 2169 2176 2232 2304 2448 2511 2592 2754 2883 2892 2976 3162 3264 3348 3456 3672 3844 3856 3968 4097 4216 4338 4352 4464 4743 4896 5022 5184 5508 5766 5784 5952 6324 6507 6528 6696 6912 7344 7471 7688 7712 7936 8194 8432 8649 8676 8928 9486 9792 10044 10368 11016 11532 11568 11904 12291 12648 13014 13056 13392 14229 14688 14942 15376 15424 16337 16388 16864 17298 17352 17856 18972 19521 19584 20088 20736 22032 22413 23064 23136 23808 24582 25296 25947 26028 26784 28458 29376 29884 30752 30848 32674 32776 33728 34596 34704 35712 36873 37944 39042 39168 40176 42687 44064 44826 46128 46272 49011 49164 50592 51894 52056 53568 56916 58752 59768 61504 61696 65348 65552 67239 67456 69192 69408 71424 73746 75888 77841 78084 80352 85374 88128 89652 92256 92544 98022 98328 101184 103788 104112 107136 110619 113832 117504 119536 123008 127007 130696 131104 134478 134912 138384 138816 147033 147492 151776 155682 156168 160704 170748 176256 179304 184512 185088 196044 196656 201717 202368 207576 208224 214272 221238 227664 231601 239072 246016 254014 261392 262208 268956 276768 277632 294066 294984 303552 311364 312336 321408 331857 341496 352512 358608 369024 381021 392088 393312 403434 404736 415152 416448 441099 442476 455328 463202 478144 508028 522784 524416 537912 553536 555264 588132 589968 605151 607104 622728 624672 642816 663714 682992 694803 717216 738048 762042 784176 786624 806868 830304 832896 882198 884952 910656 926404 956288 1016056 1045568 1048832 1075824 1107072 1143063 1176264 1179936 1210302 1214208 1245456 1249344 1323297 1327428 1365984 1389606 1434432 1524084 1568352 1573248 1613736 1660608 1665792 1764396 1769904 1821312 1852808 1912576 2032112 2084409 2091136 2151648 2214144 2286126 2352528 2359872 2420604 2490912 2498688 2646594 2654856 2731968 2779212 2868864 3048168 3136704 3146496 3227472 3321216 3429189 3528792 3539808 3642624 3705616 3937217 4064224 4168818 4182272 4303296 4572252 4705056 4719744 4841208 4981824 4997376 5293188 5309712 5463936 5558424 5737728 6096336 6253227 6273408 6454944 6642432 6858378 7057584 7079616 7411232 7874434 8128448 8337636 8606592 9144504 9410112 9439488 9682416 9963648 10287567 10586376 10619424 10927872 11116848 11811651 12192672 12506454 12546816 12909888 13716756 14115168 14159232 14822464 15748868 16256896 16675272 17213184 18289008 18759681 18820224 19364832 19927296 20575134 21172752 21238848 22233696 23623302 24385344 25012908 25819776 27433512 28230336 28318464 29644928 31497736 32513792 33350544 35434953 36578016 37519362 37640448 38729664 41150268 42345504 42477696 44467392 47246604 48770688 50025816 51639552 54867024 56460672 59289856 62995472 66701088 70869906 73156032 75038724 77459328 82300536 84691008 84955392 88934784 94493208 97541376 100051632 106304859 109734048 112921344 125990944 133402176 141739812 146312064 150077448 154918656 164601072 169382016 177869568 188986416 200103264 212609718 219468096 251981888 266804352 283479624 292624128 300154896 318914577 329202144 338764032 377972832 400206528 425219436 438936192 503963776 533608704 566959248 600309792 637829154 658404288 755945664 800413056 850438872 877872384 1007927552 1133918496 1200619584 1275658308 1316808576 1511891328 1600826112 1700877744 2267836992 2401239168 2551316616 2633617152 3023782656 3401755488 4535673984 4802478336 5102633232 6803510976 9071347968 10205266464 13607021952 20410532928 27214043904 40821065856 81642131712
- Sum of all divisors σ(n): 267450485148
- Sum of proper divisors (its aliquot sum) s(n): 185808353436
- 81642131712 is an abundant number, because the sum of its proper divisors (185808353436) is greater than itself. Its abundance is 104166221724
Bases of 81642131712
- Binary: 10011000000100100000000010001000000002
- Hexadecimal: 0x1302401100
- Base-36: 11I7M800
Squares and roots of 81642131712
- 81642131712 squared (816421317122) is 6665437670479556050944
- 81642131712 cubed (816421317123) is 544180540211418369314456629936128
-
The
square root of 81642131712 is 285730.8728716587 -
The
cube root of 81642131712 is 4338.1521385093
Scales and comparisons
How big is 81642131712?- 81,642,131,712 seconds is equal to 2,595 years, 50 weeks, 2 days, 1 hour, 55 minutes, 12 seconds.
-
To count from 1 to 81,642,131,712 would take you about five thousand, one hundred ninety-one 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 81642131712 cubic inches would be around 361.5 feet tall.
Recreational maths with 81642131712
- 81642131712 backwards is 21713124618
- 81642131712 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81642131712's digits is 36
- More coming soon!
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