1018744745307982785

Names of 1018744745307982785

• Cardinal: 1018744745307982785 can be written as One quintillion, eighteen quadrillion, seven hundred forty-four trillion, seven hundred forty-five billion, three hundred seven million, nine hundred eighty-two thousand, seven hundred eighty-five.

Scientific notation

• Scientific notation: 1.018744745307982785 × 10¹⁸

Factors of 1018744745307982785

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 22638772117955181

Divisors of 1018744745307982785

• Number of divisors d(n): 12
• Complete list of divisors:
  1 3 5 9 15 45 22638772117955173 67916316353865519 113193860589775865 203748949061596557 339581581769327595 1018744745307982785
• Sum of all divisors σ(n): 1765824225200503572
• Sum of proper divisors (its aliquot sum) s(n): 747079479892520787
• 1018744745307982785 is a deficient number, because the sum of its proper divisors (747079479892520787) is less than itself. Its deficiency is 271665265415461998

Bases of 1018744745307982785

• Binary: 111000100011010011101111001011000100111000001100101111000001₂
• Hexadecimal: 0xE234EF2C4E0CBC1
• Base-36: 7QMYVF42INY9

Squares and roots of 1018744745307982785

• 1018744745307982785 squared (1018744745307982785²) is 1037840856092626712633283045856356225
• 1018744745307982785 cubed (1018744745307982785³) is 1057294918610301813987973607985950125222910925127586625
• The square root of 1018744745307982785 is 1009328858.8502672875
• The cube root of 1018744745307982785 is 1006209.6093747829

Scales and comparisons

• 1,018,744,745,307,982,785 seconds is equal to 32,392,931,716 years, 20 weeks, 4 days, 7 hours, 39 minutes, 45 seconds.
• To count from 1 to 1,018,744,745,307,982,785 would take you about one hundred thirteen billion, three hundred seventy-five million, two hundred sixty-one thousand and seven 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 1018744745307982785 cubic inches would be around 83850.8 feet tall.

Recreational maths with 1018744745307982785

• 1018744745307982785 backwards is 5872897035474478101
• The number of decimal digits it has is: 19
• The sum of 1018744745307982785's digits is 90
• More coming soon!