81832868140

Names of 81832868140

• Cardinal: 81832868140 can be written as Eighty-one billion, eight hundred thirty-two million, eight hundred sixty-eight thousand, one hundred forty.

Scientific notation

• Scientific notation: 8.183286814 × 10¹⁰

Factors of 81832868140

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 131181

Divisors of 81832868140

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 10 19 20 31 38 53 62 76 95 106 124 155 190 212 265 310 380 530 589 620 1007 1060 1178 1643 2014 2356 2945 3286 4028 5035 5890 6572 8215 10070 11780 16430 20140 31217 32860 62434 124868 131071 156085 262142 312170 524284 624340 655355 1310710 2490349 2621420 4063201 4980698 6946763 8126402 9961396 12451745 13893526 16252804 20316005 24903490 27787052 34733815 40632010 49806980 69467630 77200819 81264020 131988497 138935260 154401638 215349653 263976994 308803276 386004095 430699306 527953988 659942485 772008190 861398612 1076748265 1319884970 1544016380 2153496530 2639769940 4091643407 4306993060 8183286814 16366573628 20458217035 40916434070 81832868140
• Sum of all divisors σ(n): 190253629440
• Sum of proper divisors (its aliquot sum) s(n): 108420761300
• 81832868140 is an abundant number, because the sum of its proper divisors (108420761300) is greater than itself. Its abundance is 26587893160

Bases of 81832868140

• Binary: 1001100001101100111100111100100101100₂
• Hexadecimal: 0x130D9E792C
• Base-36: 11LD6D64

Squares and roots of 81832868140

• 81832868140 squared (81832868140²) is 6696618308018627059600
• 81832868140 cubed (81832868140³) is 548003482983998212832082721144000
• The square root of 81832868140 is 286064.4475288741
• The cube root of 81832868140 is 4341.5278469783

Scales and comparisons

• 81,832,868,140 seconds is equal to 2,602 years, 1 week, 4 days, 16 hours, 15 minutes, 40 seconds.
• To count from 1 to 81,832,868,140 would take you about five thousand, two hundred four 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 81832868140 cubic inches would be around 361.8 feet tall.

Recreational maths with 81832868140

• 81832868140 backwards is 04186823818
• The number of decimal digits it has is: 11
• The sum of 81832868140's digits is 49
• More coming soon!