18129862912143387

Names of 18129862912143387

• Cardinal: 18129862912143387 can be written as Eighteen quadrillion, one hundred twenty-nine trillion, eight hundred sixty-two billion, nine hundred twelve million, one hundred forty-three thousand, three hundred eighty-seven.

Scientific notation

• Scientific notation: 1.8129862912143387 × 10¹⁶

Factors of 18129862912143387

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 22740258

Divisors of 18129862912143387

• Number of divisors d(n): 16
• Complete list of divisors:
  1 3 67 201 5118637 15355911 17621551 52864653 342948679 1028846037 1180643917 3541931751 90198322945987 270594968837961 6043287637381129 18129862912143387
• Sum of all divisors σ(n): 24533950026639872
• Sum of proper divisors (its aliquot sum) s(n): 6404087114496485
• 18129862912143387 is a deficient number, because the sum of its proper divisors (6404087114496485) is less than itself. Its deficiency is 11725775797646902

Bases of 18129862912143387

• Binary: 1000000011010010000001110100110101101000111000000011011₂
• Hexadecimal: 0x406903A6B4701B
• Base-36: 4YII01IP923

Squares and roots of 18129862912143387

• 18129862912143387 squared (18129862912143387²) is 328691929213112293050746447831769
• 18129862912143387 cubed (18129862912143387³) is 5959139616961664055526083890824598989366581861603
• The square root of 18129862912143387 is 134647179.3694297445
• The cube root of 18129862912143387 is 262702.8836952609

Scales and comparisons

• 18,129,862,912,143,387 seconds is equal to 576,473,561 years, 13 weeks, 2 days, 22 hours, 56 minutes, 27 seconds.
• To count from 1 to 18,129,862,912,143,387 would take you about one billion, seven hundred twenty-nine million, four hundred twenty thousand, six hundred eighty-three 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 18129862912143387 cubic inches would be around 21891.9 feet tall.

Recreational maths with 18129862912143387

• 18129862912143387 backwards is 78334121926892181
• The number of decimal digits it has is: 17
• The sum of 18129862912143387's digits is 75
• More coming soon!