128143439137

Names of 128143439137

• Cardinal: 128143439137 can be written as One hundred twenty-eight billion, one hundred forty-three million, four hundred thirty-nine thousand, one hundred thirty-seven.

Scientific notation

• Scientific notation: 1.28143439137 × 10¹¹

Factors of 128143439137

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1730

Divisors of 128143439137

• Number of divisors d(n): 64
• Complete list of divisors:
  1 7 17 31 61 119 217 427 521 527 1037 1093 1891 3647 3689 7259 7651 8857 13237 16151 18581 31781 32147 33883 61999 66673 113057 130067 222467 225029 237181 274567 466711 540277 569453 576011 985211 1133441 1921969 2066863 3781939 3986171 4032077 6896477 7934087 9680701 14468041 16748587 17653043 34736633 35136671 67764907 117240109 123571301 243156431 245956697 300101731 590522761 1076835623 2100712117 4133659327 7537849361 18306205591 128143439137
• Sum of all divisors σ(n): 163151843328
• Sum of proper divisors (its aliquot sum) s(n): 35008404191
• 128143439137 is a deficient number, because the sum of its proper divisors (35008404191) is less than itself. Its deficiency is 93135034946

Bases of 128143439137

• Binary: 1110111010101111100011011010100100001₂
• Hexadecimal: 0x1DD5F1B521
• Base-36: 1MV9AMG1

Squares and roots of 128143439137

• 128143439137 squared (128143439137²) is 16420740993858023304769
• 128143439137 cubed (128143439137³) is 2104210224130886500173793953344353
• The square root of 128143439137 is 357971.2825590903
• The cube root of 128143439137 is 5041.5660175305

Scales and comparisons

• 128,143,439,137 seconds is equal to 4,074 years, 29 weeks, 2 days, 15 hours, 45 minutes, 37 seconds.
• To count from 1 to 128,143,439,137 would take you about eight thousand, one hundred forty-nine 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 128143439137 cubic inches would be around 420.1 feet tall.

Recreational maths with 128143439137

• 128143439137 backwards is 731934341821
• The number of decimal digits it has is: 12
• The sum of 128143439137's digits is 46
• More coming soon!