8104739389721

Names of 8104739389721

• Cardinal: 8104739389721 can be written as Eight trillion, one hundred four billion, seven hundred thirty-nine million, three hundred eighty-nine thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 8.104739389721 × 10¹²

Factors of 8104739389721

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 42609

Divisors of 8104739389721

• Number of divisors d(n): 48
• Complete list of divisors:
  1 13 37 41 169 481 533 757 1517 6253 6929 9841 19721 28009 31037 41761 127933 256373 364117 403481 542893 1148369 1545157 1712201 4733521 5245253 7057609 14928797 20087041 22258613 31613077 63351437 194074361 261131533 289361969 410970001 823568681 1169683849 1296136157 5342610013 10706392853 15205890037 16849770041 47957037809 197676570481 219047010533 623441491517 8104739389721
• Sum of all divisors σ(n): 9245586612528
• Sum of proper divisors (its aliquot sum) s(n): 1140847222807
• 8104739389721 is a deficient number, because the sum of its proper divisors (1140847222807) is less than itself. Its deficiency is 6963892166914

Bases of 8104739389721

• Binary: 1110101111100001000000111001100000100011001₂
• Hexadecimal: 0x75F081CC119
• Base-36: 2VF9KKOIH

Squares and roots of 8104739389721

• 8104739389721 squared (8104739389721²) is 65686800575295127520457841
• 8104739389721 cubed (8104739389721³) is 532374400007342463529620354208849252361
• The square root of 8104739389721 is 2846882.3982948433
• The cube root of 8104739389721 is 20086.9046568481

Scales and comparisons

• 8,104,739,389,721 seconds is equal to 257,705 years, 33 weeks, 3 days, 1 hour, 8 minutes, 41 seconds.
• To count from 1 to 8,104,739,389,721 would take you about six hundred forty-four thousand, two hundred sixty-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 8104739389721 cubic inches would be around 1673.9 feet tall.

Recreational maths with 8104739389721

• 8104739389721 backwards is 1279839374018
• The number of decimal digits it has is: 13
• The sum of 8104739389721's digits is 62
• More coming soon!