13947391018501621

Names of 13947391018501621

• Cardinal: 13947391018501621 can be written as Thirteen quadrillion, nine hundred forty-seven trillion, three hundred ninety-one billion, eighteen million, five hundred one thousand, six hundred twenty-one.

Scientific notation

• Scientific notation: 1.3947391018501621 × 10¹⁶

Factors of 13947391018501621

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 25583454263

Divisors of 13947391018501621

• Number of divisors d(n): 8
• Complete list of divisors:
  1 17 32069 545173 25583422177 434918177009 820434765794213 13947391018501621
• Sum of all divisors σ(n): 14768286286472280
• Sum of proper divisors (its aliquot sum) s(n): 820895267970659
• 13947391018501621 is a deficient number, because the sum of its proper divisors (820895267970659) is less than itself. Its deficiency is 13126495750530962

Bases of 13947391018501621

• Binary: 110001100011010001010000000111001100111000010111110101₂
• Hexadecimal: 0x318D14073385F5
• Base-36: 3TBXQZ9G8VP

Squares and roots of 13947391018501621

• 13947391018501621 squared (13947391018501621²) is 194529716222979684783931979627641
• 13947391018501621 cubed (13947391018501621³) is 2713182016880055931533371455842519811481334906061
• The square root of 13947391018501621 is 118099072.8943357159
• The cube root of 13947391018501621 is 240711.9543101295

Scales and comparisons

• 13,947,391,018,501,621 seconds is equal to 443,483,892 years, 14 weeks, 2 days, 5 hours, 7 minutes, 1 second.
• To count from 1 to 13,947,391,018,501,621 would take you about one billion, three hundred thirty million, four hundred fifty-one thousand, six hundred seventy-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 13947391018501621 cubic inches would be around 20059.3 feet tall.

Recreational maths with 13947391018501621

• 13947391018501621 backwards is 12610581019374931
• The number of decimal digits it has is: 17
• The sum of 13947391018501621's digits is 61
• More coming soon!