81531714129008

Names of 81531714129008

• Cardinal: 81531714129008 can be written as Eighty-one trillion, five hundred thirty-one billion, seven hundred fourteen million, one hundred twenty-nine thousand and eight.

Scientific notation

• Scientific notation: 8.1531714129008 × 10¹³

Factors of 81531714129008

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 157

Divisors of 81531714129008

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 4 8 11 13 16 22 26 44 52 88 104 121 131 143 176 208 242 262 286 484 524 572 968 1048 1144 1331 1441 1573 1703 1936 2096 2288 2662 2882 3146 3406 5324 5764 6292 6812 10648 11528 12584 13624 15851 17161 17303 18733 21296 23056 25168 27248 31702 34322 34606 37466 63404 68644 69212 74932 126808 137288 138424 149864 174361 188771 206063 223093 253616 274576 276848 299728 348722 377542 412126 446186 697444 755084 824252 892372 1394888 1510168 1648504 1784744 2076481 2248091 2266693 2454023 2789776 3020336 3297008 3569488 4152962 4496182 4533386 4908046 8305924 8992364 9066772 9816092 16611848 17984728 18133544 19632184 22841291 24729001 26994253 29225183 33223696 35969456 36267088 39264368 45682582 49458002 53988506 58450366 91365164 98916004 107977012 116900732 182730328 197832008 215954024 233801464 272019011 294499921 296936783 321477013 365460656 395664016 431908048 467602928 544038022 588999842 593873566 642954026 1088076044 1177999684 1187747132 1285908052 2176152088 2355999368 2375494264 2571816104 2992209121 3239499131 3536247143 3828498973 4352304176 4711998736 4750988528 5143632208 5984418242 6478998262 7072494286 7656997946 11968836484 12957996524 14144988572 15313995892 23937672968 25915993048 28289977144 30627991784 35634490441 38898718573 42113488703 47875345936 51831986096 56579954288 61255983568 71268980882 77797437146 84226977406 142537961764 155594874292 168453954812 285075923528 311189748584 336907909624 391979394851 463248375733 570151847056 622379497168 673815819248 783958789702 926496751466 1567917579404 1852993502932 3135835158808 3705987005864 5095732133063 6271670317616 7411974011728 10191464266126 20382928532252 40765857064504 81531714129008
• Sum of all divisors σ(n): 188557552429680
• Sum of proper divisors (its aliquot sum) s(n): 107025838300672
• 81531714129008 is an abundant number, because the sum of its proper divisors (107025838300672) is greater than itself. Its abundance is 25494124171664

Bases of 81531714129008

• Binary: 10010100010011100010100110110111100110001110000₂
• Hexadecimal: 0x4A2714DBCC70
• Base-36: SWF5HI7OW

Squares and roots of 81531714129008

• 81531714129008 squared (81531714129008²) is 6647420408814282736067064064
• 81531714129008 cubed (81531714129008³) is 541975580466779591252470339300265496768512
• The square root of 81531714129008 is 9029491.3549439761
• The cube root of 81531714129008 is 43361.9553280271

Scales and comparisons

• 81,531,714,129,008 seconds is equal to 2,592,456 years, 16 weeks, 2 days, 17 hours, 10 minutes, 8 seconds.
• To count from 1 to 81,531,714,129,008 would take you about six million, four hundred eighty-one thousand, one hundred forty 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 81531714129008 cubic inches would be around 3613.5 feet tall.

Recreational maths with 81531714129008

• 81531714129008 backwards is 80092141713518
• The number of decimal digits it has is: 14
• The sum of 81531714129008's digits is 50
• More coming soon!