18139737728520659

Names of 18139737728520659

• Cardinal: 18139737728520659 can be written as Eighteen quadrillion, one hundred thirty-nine trillion, seven hundred thirty-seven billion, seven hundred twenty-eight million, five hundred twenty thousand, six hundred fifty-nine.

Scientific notation

• Scientific notation: 1.8139737728520659 × 10¹⁶

Factors of 18139737728520659

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 28036688916444

Divisors of 18139737728520659

• Number of divisors d(n): 4
• Complete list of divisors:
  1 647 28036688915797 18139737728520659
• Sum of all divisors σ(n): 18167774417437104
• Sum of proper divisors (its aliquot sum) s(n): 28036688916445
• 18139737728520659 is a deficient number, because the sum of its proper divisors (28036688916445) is less than itself. Its deficiency is 18111701039604214

Bases of 18139737728520659

• Binary: 1000000011100011111111011001111101000001001000111010011₂
• Hexadecimal: 0x4071FECFA091D3
• Base-36: 4YM00GXEUAB

Squares and roots of 18139737728520659

• 18139737728520659 squared (18139737728520659²) is 329050084859515837395716589794281
• 18139737728520659 cubed (18139737728520659³) is 5968882238899083903553464145869435218259268551179
• The square root of 18139737728520659 is 134683843.6061306463
• The cube root of 18139737728520659 is 262750.5706139515

Scales and comparisons

• 18,139,737,728,520,659 seconds is equal to 576,787,549 years, 45 weeks, 3 days, 4 hours, 10 minutes, 59 seconds.
• To count from 1 to 18,139,737,728,520,659 would take you about one billion, seven hundred thirty million, three hundred sixty-two thousand, six hundred forty-nine 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 18139737728520659 cubic inches would be around 21895.9 feet tall.

Recreational maths with 18139737728520659

• 18139737728520659 backwards is 95602582773793181
• The number of decimal digits it has is: 17
• The sum of 18139737728520659's digits is 83
• More coming soon!