12961081261856720

Names of 12961081261856720

• Cardinal: 12961081261856720 can be written as Twelve quadrillion, nine hundred sixty-one trillion, eighty-one billion, two hundred sixty-one million, eight hundred fifty-six thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.296108126185672 × 10¹⁶

Factors of 12961081261856720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 553441

Divisors of 12961081261856720

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 529 920 1058 1840 2116 2645 4232 5290 8464 10580 21160 42320 553411 1106822 2213644 2767055 4427288 5534110 8854576 11068220 12728453 22136440 25456906 44272880 50913812 63642265 101827624 127284530 203655248 254569060 292754419 509138120 585508838 1018276240 1171017676 1463772095 2342035352 2927544190 4684070704 5855088380 11710176760 23420353520 306263734921 612527469842 1225054939684 1531318674605 2450109879368 3062637349210 4900219758736 6125274698420 7044065903183 12250549396840 14088131806366 24501098793680 28176263612732 35220329515915 56352527225464 70440659031830 112705054450928 140881318063660 162013515773209 281762636127320 324027031546418 563525272254640 648054063092836 810067578866045 1296108126185672 1620135157732090 2592216252371344 3240270315464180 6480540630928360 12961081261856720
• Sum of all divisors σ(n): 31501732169355714
• Sum of proper divisors (its aliquot sum) s(n): 18540650907498994
• 12961081261856720 is an abundant number, because the sum of its proper divisors (18540650907498994) is greater than itself. Its abundance is 5579569645642274

Bases of 12961081261856720

• Binary: 101110000011000000100011100100100001001001011111010000₂
• Hexadecimal: 0x2E0C08E48497D0
• Base-36: 3JMBIJ63W7K

Squares and roots of 12961081261856720

• 12961081261856720 squared (12961081261856720²) is 167989627476453385197581809158400
• 12961081261856720 cubed (12961081261856720³) is 2177327212871350763276019513363888708284584448000
• The square root of 12961081261856720 is 113846744.6256445227
• The cube root of 12961081261856720 is 234898.5906913345

Scales and comparisons

• 12,961,081,261,856,720 seconds is equal to 412,122,292 years, 45 weeks, 1 day, 19 hours, 45 minutes, 20 seconds.
• To count from 1 to 12,961,081,261,856,720 would take you about one billion, two hundred thirty-six million, three hundred sixty-six thousand, eight hundred seventy-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 12961081261856720 cubic inches would be around 19574.9 feet tall.

Recreational maths with 12961081261856720

• 12961081261856720 backwards is 02765816218016921
• The number of decimal digits it has is: 17
• The sum of 12961081261856720's digits is 65
• More coming soon!