82100881035656721

Names of 82100881035656721

• Cardinal: 82100881035656721 can be written as Eighty-two quadrillion, one hundred trillion, eight hundred eighty-one billion, thirty-five million, six hundred fifty-six thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 8.2100881035656721 × 10¹⁶

Factors of 82100881035656721

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 42406319435

Divisors of 82100881035656721

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 7 9 21 63 79 237 389 553 711 1167 1659 2723 3501 4977 8169 24507 30731 92193 215117 276579 645351 1936053 42406318957 127218956871 296844232699 381656870613 890532698097 2671598094291 3350099197603 10050297592809 16496058074273 23450694383221 30150892778427 49488174222819 70352083149663 115472406519911 148464522668457 211056249448989 346417219559733 1039251658679199 1303188587867567 3909565763602701 9122320115072969 11728697290808103 27366960345218907 82100881035656721
• Sum of all divisors σ(n): 137600023754918400
• Sum of proper divisors (its aliquot sum) s(n): 55499142719261679
• 82100881035656721 is a deficient number, because the sum of its proper divisors (55499142719261679) is less than itself. Its deficiency is 26601738316395042

Bases of 82100881035656721

• Binary: 100100011101011100101000011111001111000000111111000010001₂
• Hexadecimal: 0x123AE50F9E07E11
• Base-36: MGEC02AP6A9

Squares and roots of 82100881035656721

• 82100881035656721 squared (82100881035656721²) is 6740554666831057416613803752471841
• 82100881035656721 cubed (82100881035656721³) is 553405476815837369206020293278223238942562494893361
• The square root of 82100881035656721 is 286532513.0515849871
• The cube root of 82100881035656721 is 434626.2364564809

Scales and comparisons

• 82,100,881,035,656,721 seconds is equal to 2,610,554,062 years, 12 weeks, 1 day, 10 hours, 25 minutes, 21 seconds.
• To count from 1 to 82,100,881,035,656,721 would take you about seven billion, eight hundred thirty-one million, six hundred sixty-two thousand, one hundred eighty-six 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 82100881035656721 cubic inches would be around 36218.9 feet tall.

Recreational maths with 82100881035656721

• 82100881035656721 backwards is 12765653018800128
• 82100881035656721 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 82100881035656721's digits is 63
• More coming soon!