128408693310438

Names of 128408693310438

• Cardinal: 128408693310438 can be written as One hundred twenty-eight trillion, four hundred eight billion, six hundred ninety-three million, three hundred ten thousand, four hundred thirty-eight.

Scientific notation

• Scientific notation: 1.28408693310438 × 10¹⁴

Factors of 128408693310438

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 205792

Divisors of 128408693310438

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 29 58 87 174 841 1682 2523 4357 5046 8714 13071 24389 26142 48778 73167 126353 146334 201401 252706 379059 402802 604203 758118 1208406 3664237 5840629 7328474 10992711 11681258 17521887 21985422 35043774 106262873 169378241 212525746 318788619 338756482 508134723 637577238 877504157 1016269446 1755008314 2632512471 4911968989 5265024942 9823937978 14735906967 25447620553 29471813934 50895241106 76342861659 152685723318 737980996037 1475961992074 2213942988111 4427885976222 21401448885073 42802897770146 64204346655219 128408693310438
• Sum of all divisors σ(n): 266051429737920
• Sum of proper divisors (its aliquot sum) s(n): 137642736427482
• 128408693310438 is an abundant number, because the sum of its proper divisors (137642736427482) is greater than itself. Its abundance is 9234043117044

Bases of 128408693310438

• Binary: 11101001100100101111010100011010000001111100110₂
• Hexadecimal: 0x74C97A8D03E6
• Base-36: 19IM50KZC6

Squares and roots of 128408693310438

• 128408693310438 squared (128408693310438²) is 16488792517694124771439751844
• 128408693310438 cubed (128408693310438³) is 2117304301464029707287430968328593574947672
• The square root of 128408693310438 is 11331755.9676529391
• The cube root of 128408693310438 is 50450.4226459259

Scales and comparisons

• 128,408,693,310,438 seconds is equal to 4,082,999 years, 13 weeks, 1 day, 3 hours, 7 minutes, 18 seconds.
• To count from 1 to 128,408,693,310,438 would take you about ten million, two hundred seven thousand, four hundred ninety-eight 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 128408693310438 cubic inches would be around 4204.2 feet tall.

Recreational maths with 128408693310438

• 128408693310438 backwards is 834013396804821
• The number of decimal digits it has is: 15
• The sum of 128408693310438's digits is 60
• More coming soon!