1385991555681728

Names of 1385991555681728

• Cardinal: 1385991555681728 can be written as One quadrillion, three hundred eighty-five trillion, nine hundred ninety-one billion, five hundred fifty-five million, six hundred eighty-one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.385991555681728 × 10¹⁵

Factors of 1385991555681728

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 27526272

Divisors of 1385991555681728

• Number of divisors d(n): 42
• Complete list of divisors:
  1 2 4 8 16 32 64 887 1774 3548 7096 14192 28384 56768 786769 1573538 3147076 6294152 12588304 25176608 27525383 50353216 55050766 110101532 220203064 440406128 880812256 1761624512 24415014721 48830029442 97660058884 195320117768 390640235536 781280471072 1562560942144 21656118057527 43312236115054 86624472230108 173248944460216 346497888920432 692995777840864 1385991555681728
• Sum of all divisors σ(n): 2753431295931576
• Sum of proper divisors (its aliquot sum) s(n): 1367439740249848
• 1385991555681728 is a deficient number, because the sum of its proper divisors (1367439740249848) is less than itself. Its deficiency is 18551815431880

Bases of 1385991555681728

• Binary: 100111011001000110101001110010101101000110111000000₂
• Hexadecimal: 0x4EC8D4E568DC0
• Base-36: DNAJQB0ERK

Squares and roots of 1385991555681728

• 1385991555681728 squared (1385991555681728²) is 1920972592421056527078833065984
• 1385991555681728 cubed (1385991555681728³) is 2662451791791622154194913472800980473527140352
• The square root of 1385991555681728 is 37228907.5273735101
• The cube root of 1385991555681728 is 111494.5215237871

Scales and comparisons

• 1,385,991,555,681,728 seconds is equal to 44,070,244 years, 16 weeks, 3 days, 12 hours, 2 minutes, 8 seconds.
• To count from 1 to 1,385,991,555,681,728 would take you about one hundred thirty-two million, two hundred ten thousand, seven hundred thirty-two 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 1385991555681728 cubic inches would be around 9291.2 feet tall.

Recreational maths with 1385991555681728

• 1385991555681728 backwards is 8271865551995831
• The number of decimal digits it has is: 16
• The sum of 1385991555681728's digits is 83
• More coming soon!