81030390636384

Names of 81030390636384

• Cardinal: 81030390636384 can be written as Eighty-one trillion, thirty billion, three hundred ninety million, six hundred thirty-six thousand, three hundred eighty-four.

Scientific notation

• Scientific notation: 8.1030390636384 × 10¹³

Factors of 81030390636384

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 147871

Divisors of 81030390636384

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 79 84 96 112 126 144 158 168 224 237 252 288 316 336 474 504 553 632 672 711 948 1008 1106 1264 1422 1659 1896 2016 2212 2528 2844 3318 3527 3792 4424 4977 5688 6636 7054 7584 8848 9954 10581 11376 13272 14108 17696 19908 21162 22752 24689 26544 28216 31743 39816 42324 49378 53088 56432 63486 74067 79632 84648 98756 112864 126972 144253 148134 159264 169296 197512 222201 253944 278633 288506 296268 338592 395024 432759 444402 507888 557266 577012 592536 790048 835899 865518 888804 1009771 1015776 1114532 1154024 1185072 1298277 1671798 1731036 1777608 1950431 2019542 2229064 2308048 2370144 2507697 2596554 3029313 3343596 3462072 3555216 3900862 4039084 4458128 4616096 5015394 5193108 5851293 6058626 6687192 6924144 7110432 7801724 8078168 8916256 9087939 10030788 10386216 11395987 11702586 12117252 13374384 13848288 15603448 16156336 17553879 18175878 20061576 20772432 22791974 23405172 24234504 26748768 31206896 32312672 34187961 35107758 36351756 40123152 41544864 45583948 46810344 48469008 62413792 68375922 70215516 72703512 79771909 80246304 91167896 93620688 96938016 102563883 136751844 140431032 145407024 159543818 182335792 187241376 205127766 239315727 273503688 280862064 290814048 319087636 364671584 410255532 478631454 508780331 547007376 561724128 638175272 717947181 820511064 957262908 1017560662 1094014752 1276350544 1435894362 1526340993 1641022128 1914525816 2035121324 2552701088 2871788724 3052681986 3282044256 3561462317 3829051632 4070242648 4579022979 5743577448 6105363972 7122924634 7658103264 8140485296 9158045958 10684386951 11487154896 12210727944 14245849268 16280970592 18316091916 21368773902 22974309792 24421455888 28491698536 32053160853 36632183832 40193646149 42737547804 48842911776 56983397072 64106321706 73264367664 80387292298 85475095608 113966794144 120580938447 128212643412 146528735328 160774584596 170950191216 241161876894 256425286824 281355523043 321549169192 341900382432 361742815341 482323753788 512850573648 562711046086 643098338384 723485630682 844066569129 964647507576 1025701147296 1125422092172 1286196676768 1446971261364 1688133138258 1929295015152 2250844184344 2532199707387 2893942522728 3376266276516 3858590030304 4501688368688 5064399414774 5787885045456 6752532553032 9003376737376 10128798829548 11575770090912 13505065106064 20257597659096 27010130212128 40515195318192 81030390636384
• Sum of all divisors σ(n): 266759759185920
• Sum of proper divisors (its aliquot sum) s(n): 185729368549536
• 81030390636384 is an abundant number, because the sum of its proper divisors (185729368549536) is greater than itself. Its abundance is 104698977913152

Bases of 81030390636384

• Binary: 10010011011001001011011101001100101111101100000₂
• Hexadecimal: 0x49B25BA65F60
• Base-36: SQ0UIFX40

Squares and roots of 81030390636384

• 81030390636384 squared (81030390636384²) is 6565924206684987824504595456
• 81030390636384 cubed (81030390636384³) is 532039403356574280911878218301440314671104
• The square root of 81030390636384 is 9001688.2103516561
• The cube root of 81030390636384 is 43272.8976526455

Scales and comparisons

• 81,030,390,636,384 seconds is equal to 2,576,515 years, 40 weeks, 3 days, 11 hours, 26 minutes, 24 seconds.
• To count from 1 to 81,030,390,636,384 would take you about six million, four hundred forty-one thousand, two hundred eighty-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 81030390636384 cubic inches would be around 3606.1 feet tall.

Recreational maths with 81030390636384

• 81030390636384 backwards is 48363609303018
• The number of decimal digits it has is: 14
• The sum of 81030390636384's digits is 54
• More coming soon!