81831332849664

Names of 81831332849664

• Cardinal: 81831332849664 can be written as Eighty-one trillion, eight hundred thirty-one billion, three hundred thirty-two million, eight hundred forty-nine thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 8.1831332849664 × 10¹³

Factors of 81831332849664

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 11838

Divisors of 81831332849664

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 512 521 768 1024 1042 1536 1563 2048 2084 3072 3121 3126 4168 6144 6242 6252 8191 8336 9363 12484 12504 16382 16672 18726 24573 24968 25008 32764 33344 37452 49146 49936 50016 65528 66688 74904 98292 99872 100032 131056 133376 149808 196584 199744 200064 262112 266752 299616 393168 399488 400128 524224 533504 599232 786336 798976 800256 1048448 1067008 1198464 1572672 1597952 1600512 1626041 2096896 2396928 3145344 3195904 3201024 3252082 4193792 4267511 4793856 4878123 6290688 6391808 6504164 8387584 8535022 9587712 9756246 12581376 12802533 13008328 16775168 17070044 19175424 19512492 25162752 25564111 25605066 26016656 34140088 39024984 50325504 51128222 51210132 52033312 68280176 76692333 78049968 102256444 102420264 104066624 136560352 153384666 156099936 204512888 204840528 208133248 273120704 306769332 312199872 409025776 409681056 416266496 546241408 613538664 624399744 818051552 819362112 832532992 1092482816 1227077328 1248799488 1636103104 1638724224 1665065984 2184965632 2454154656 2497598976 3272206208 3277448448 3330131968 4369931264 4908309312 4995197952 6544412416 6554896896 8739862528 9816618624 9990395904 13088824832 13109793792 13318901831 19633237248 26177649664 26219587584 26637803662 39266474496 39956705493 52355299328 53275607324 78532948992 79913410986 106551214648 157065897984 159826821972 213102429296 319653643944 426204858592 639307287888 852409717184 1278614575776 1704819434368 2557229151552 3409638868736 5114458303104 6819277737472 10228916606208 13638555474944 20457833212416 27277110949888 40915666424832 81831332849664
• Sum of all divisors σ(n): 218679082352640
• Sum of proper divisors (its aliquot sum) s(n): 136847749502976
• 81831332849664 is an abundant number, because the sum of its proper divisors (136847749502976) is greater than itself. Its abundance is 55016416653312

Bases of 81831332849664

• Binary: 10010100110110011010111100001101010100000000000₂
• Hexadecimal: 0x4A6CD786A800
• Base-36: T08SMR85C

Squares and roots of 81831332849664

• 81831332849664 squared (81831332849664²) is 6696367035952498466824912896
• 81831332849664 cubed (81831332849664³) is 547972639802546839503784090379980262866944
• The square root of 81831332849664 is 9046067.2587408947
• The cube root of 81831332849664 is 43415.0069591793

Scales and comparisons

• 81,831,332,849,664 seconds is equal to 2,601,983 years, 13 weeks, 4 days, 23 hours, 34 minutes, 24 seconds.
• To count from 1 to 81,831,332,849,664 would take you about six million, five hundred four thousand, nine hundred fifty-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 81831332849664 cubic inches would be around 3617.9 feet tall.

Recreational maths with 81831332849664

• 81831332849664 backwards is 46694823313818
• The number of decimal digits it has is: 14
• The sum of 81831332849664's digits is 66
• More coming soon!