81984918528

Names of 81984918528

• Cardinal: 81984918528 can be written as Eighty-one billion, nine hundred eighty-four million, nine hundred eighteen thousand, five hundred twenty-eight.

Scientific notation

• Scientific notation: 8.1984918528 × 10¹⁰

Factors of 81984918528

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 17365

Divisors of 81984918528

• Number of divisors d(n): 264
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 27 32 36 38 48 54 57 64 72 76 81 96 108 114 128 144 152 162 171 192 216 228 243 256 288 304 324 342 384 432 456 486 512 513 576 608 648 684 768 864 912 972 1024 1026 1152 1216 1296 1368 1536 1539 1728 1824 1944 2052 2304 2432 2592 2736 3072 3078 3456 3648 3888 4104 4608 4617 4864 5184 5472 6156 6912 7296 7776 8208 9216 9234 9728 10368 10944 12312 13824 14592 15552 16416 17341 18468 19456 20736 21888 24624 27648 29184 31104 32832 34682 36936 41472 43776 49248 52023 58368 62208 65664 69364 73872 82944 87552 98496 104046 124416 131328 138728 147744 156069 175104 196992 208092 248832 262656 277456 295488 312138 329479 393984 416184 468207 525312 554912 590976 624276 658958 787968 832368 936414 988437 1109824 1181952 1248552 1317916 1404621 1575936 1664736 1872828 1976874 2219648 2363904 2497104 2635832 2809242 2965311 3329472 3745656 3953748 4213863 4439296 4727808 4994208 5271664 5618484 5930622 6658944 7491312 7907496 8427726 8878592 8895933 9988416 10543328 11236968 11861244 13317888 14982624 15814992 16855452 17757184 17791866 19976832 21086656 22473936 23722488 26635776 26687799 29965248 31629984 33710904 35583732 39953664 42173312 44947872 47444976 53271552 53375598 59930496 63259968 67421808 71167464 79907328 80063397 84346624 89895744 94889952 106751196 119860992 126519936 134843616 142334928 159814656 160126794 168693248 179791488 189779904 213502392 239721984 253039872 269687232 284669856 320253588 337386496 359582976 379559808 427004784 479443968 506079744 539374464 569339712 640507176 719165952 759119616 854009568 1012159488 1078748928 1138679424 1281014352 1438331904 1518239232 1708019136 2157497856 2277358848 2562028704 3036478464 3416038272 4314995712 4554717696 5124057408 6832076544 9109435392 10248114816 13664153088 20496229632 27328306176 40992459264 81984918528
• Sum of all divisors σ(n): 258433258720
• Sum of proper divisors (its aliquot sum) s(n): 176448340192
• 81984918528 is an abundant number, because the sum of its proper divisors (176448340192) is greater than itself. Its abundance is 94463421664

Bases of 81984918528

• Binary: 1001100010110101011101001010000000000₂
• Hexadecimal: 0x1316AE9400
• Base-36: 11NVPC00

Squares and roots of 81984918528

• 81984918528 squared (81984918528²) is 6721526866042797686784
• 81984918528 cubed (81984918528³) is 551063832496281938112173102333952
• The square root of 81984918528 is 286330.0866622297
• The cube root of 81984918528 is 4344.2151231947

Scales and comparisons

• 81,984,918,528 seconds is equal to 2,606 years, 45 weeks, 12 hours, 28 minutes, 48 seconds.
• To count from 1 to 81,984,918,528 would take you about five thousand, two hundred thirteen 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 81984918528 cubic inches would be around 362 feet tall.

Recreational maths with 81984918528

• 81984918528 backwards is 82581948918
• The number of decimal digits it has is: 11
• The sum of 81984918528's digits is 63
• More coming soon!