81787343347712

Names of 81787343347712

• Cardinal: 81787343347712 can be written as Eighty-one trillion, seven hundred eighty-seven billion, three hundred forty-three million, three hundred forty-seven thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 8.1787343347712 × 10¹³

Factors of 81787343347712

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 778

Divisors of 81787343347712

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 4 8 16 32 64 128 163 256 326 512 613 652 1024 1226 1304 2048 2452 2608 4096 4904 5216 8192 9808 10432 19616 20864 26569 39232 41728 53138 78464 83456 99919 106276 156928 166912 199838 212552 313856 333824 375769 399676 425104 627712 667648 751538 799352 850208 1255424 1335296 1503076 1598704 1700416 2510848 3006152 3197408 3400832 5021696 6012304 6394816 6801664 12024608 12789632 13603328 16286797 24049216 25579264 27206656 32573594 48098432 51158528 54413312 61250347 65147188 96196864 102317056 108826624 122500694 130294376 192393728 204634112 217653248 245001388 260588752 384787456 409268224 490002776 521177504 769574912 818536448 980005552 1042355008 1539149824 1960011104 2084710016 3078299648 3920022208 4169420032 7840044416 8338840064 9983806561 15680088832 16677680128 19967613122 31360177664 33355360256 39935226244 62720355328 66710720512 79870452488 125440710656 133421441024 159740904976 250881421312 319481809952 501762842624 638963619904 1277927239808 2555854479616 5111708959232 10223417918464 20446835836928 40893671673856 81787343347712
• Sum of all divisors σ(n): 164843235125037
• Sum of proper divisors (its aliquot sum) s(n): 83055891777325
• 81787343347712 is an abundant number, because the sum of its proper divisors (83055891777325) is greater than itself. Its abundance is 1268548429613

Bases of 81787343347712

• Binary: 10010100110001010011001100011000010000000000000₂
• Hexadecimal: 0x4A62998C2000
• Base-36: SZOL4JJ7K

Squares and roots of 81787343347712

• 81787343347712 squared (81787343347712²) is 6689169531876530339335634944
• 81787343347712 cubed (81787343347712³) is 547089405214639736781002084638786089648128
• The square root of 81787343347712 is 9043635.5160804661
• The cube root of 81787343347712 is 43407.2261300741

Scales and comparisons

• 81,787,343,347,712 seconds is equal to 2,600,584 years, 27 weeks, 5 days, 5 hours, 28 minutes, 32 seconds.
• To count from 1 to 81,787,343,347,712 would take you about six million, five hundred one thousand, four hundred sixty-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 81787343347712 cubic inches would be around 3617.3 feet tall.

Recreational maths with 81787343347712

• 81787343347712 backwards is 21774334378718
• The number of decimal digits it has is: 14
• The sum of 81787343347712's digits is 65
• More coming soon!