1428638762964427729

Names of 1428638762964427729

• Cardinal: 1428638762964427729 can be written as One quintillion, four hundred twenty-eight quadrillion, six hundred thirty-eight trillion, seven hundred sixty-two billion, nine hundred sixty-four million, four hundred twenty-seven thousand, seven hundred twenty-nine.

Scientific notation

• Scientific notation: 1.428638762964427729 × 10¹⁸

Factors of 1428638762964427729

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 8358463

Divisors of 1428638762964427729

• Number of divisors d(n): 27
• Complete list of divisors:
  1 11 13 121 143 169 1573 1859 20449 8358439 91942829 108659707 1011371119 1195256777 1412576191 13147824547 15538338101 170921719111 69863502516721 768498527683931 908225532717373 8453483804523241 9990480859891103 11806931925325849 109895289458802133 129876251178584339 1428638762964427729
• Sum of all divisors σ(n): 1700407991190543579
• Sum of proper divisors (its aliquot sum) s(n): 271769228226115850
• 1428638762964427729 is a deficient number, because the sum of its proper divisors (271769228226115850) is less than itself. Its deficiency is 1156869534738311879

Bases of 1428638762964427729

• Binary: 1001111010011100010110110001010111010110110010010001111010001₂
• Hexadecimal: 0x13D38B62BAD923D1
• Base-36: AUQY6B9X91AP

Squares and roots of 1428638762964427729

• 1428638762964427729 squared (1428638762964427729²) is 2041008715044530318524183840464097441
• 1428638762964427729 cubed (1428638762964427729³) is 2915864165860833969047460177866958926394895843058341489
• 1428638762964427729 is a perfect square number. Its square root is 1195256777
• The cube root of 1428638762964427729 is 1126265.5750496619

Scales and comparisons

• 1,428,638,762,964,427,729 seconds is equal to 45,426,293,592 years, 22 weeks, 1 day, 20 hours, 8 minutes, 49 seconds.
• To count from 1 to 1,428,638,762,964,427,729 would take you about one hundred fifty-eight billion, nine hundred ninety-two million, twenty-seven thousand, five hundred seventy-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 1428638762964427729 cubic inches would be around 93855.5 feet tall.

Recreational maths with 1428638762964427729

• 1428638762964427729 backwards is 9277244692678368241
• The number of decimal digits it has is: 19
• The sum of 1428638762964427729's digits is 97
• More coming soon!