87121535889289231

Names of 87121535889289231

• Cardinal: 87121535889289231 can be written as Eighty-seven quadrillion, one hundred twenty-one trillion, five hundred thirty-five billion, eight hundred eighty-nine million, two hundred eighty-nine thousand, two hundred thirty-one.

Scientific notation

• Scientific notation: 8.7121535889289231 × 10¹⁶

Factors of 87121535889289231

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 413

Divisors of 87121535889289231

• Number of divisors d(n): 64
• Complete list of divisors:
  1 11 121 191 211 1331 2101 2321 23111 25531 36481 40301 44521 254221 280841 401291 443311 489731 4414201 4876421 5387041 6967871 7697491 8503511 9393931 48556211 53640631 59257451 76646581 84672401 93538621 103333241 843112391 931396411 1028924831 1136665651 1470220781 1624170601 1794240821 9274236301 10245360521 11318173141 12503322161 16172428591 17865876611 19736649031 177896714501 196524642721 217103139341 310216584791 342699996811 1956863859511 2161771069931 2388134532751 3412382432701 3769699964921 37536206759711 41466699614131 65455699390901 412898274356821 456133695755441 720012693299911 7920139626299021 87121535889289231
• Sum of all divisors σ(n): 96790218591412224
• Sum of proper divisors (its aliquot sum) s(n): 9668682702122993
• 87121535889289231 is a deficient number, because the sum of its proper divisors (9668682702122993) is less than itself. Its deficiency is 77452853187166238

Bases of 87121535889289231

• Binary: 100110101100001001001001101000110111101111011000000001111₂
• Hexadecimal: 0x135849346F7B00F
• Base-36: NTU092932FJ

Squares and roots of 87121535889289231

• 87121535889289231 squared (87121535889289231²) is 7590162015708711518214506372571361
• 87121535889289231 cubed (87121535889289231³) is 661266572457086402454038240479519732467720116313391
• The square root of 87121535889289231 is 295163574.8009724031
• 87121535889289231 is a perfect cube number. Its cube root is 443311

Scales and comparisons

• 87,121,535,889,289,231 seconds is equal to 2,770,195,356 years, 35 weeks, 17 hours, 40 minutes, 31 seconds.
• To count from 1 to 87,121,535,889,289,231 would take you about eight billion, three hundred ten million, five hundred eighty-six thousand and seventy 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 87121535889289231 cubic inches would be around 36942.6 feet tall.

Recreational maths with 87121535889289231

• 87121535889289231 backwards is 13298298853512178
• The number of decimal digits it has is: 17
• The sum of 87121535889289231's digits is 82
• More coming soon!