128372426

Names of 128372426

• Cardinal: 128372426 can be written as One hundred twenty-eight million, three hundred seventy-two thousand, four hundred twenty-six.

Scientific notation

• Scientific notation: 1.28372426 × 10⁸

Factors of 128372426

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 487

Divisors of 128372426

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 7 13 14 26 31 61 62 91 122 182 217 373 403 427 434 746 793 806 854 1586 1891 2611 2821 3782 4849 5222 5551 5642 9698 11102 11563 13237 22753 23126 24583 26474 33943 45506 49166 67886 80941 150319 159271 161882 172081 295789 300638 318542 344162 591578 705343 1052233 1410686 2070523 2104466 4141046 4937401 9169459 9874802 18338918 64186213 128372426
• Sum of all divisors σ(n): 249317376
• Sum of proper divisors (its aliquot sum) s(n): 120944950
• 128372426 is a deficient number, because the sum of its proper divisors (120944950) is less than itself. Its deficiency is 7427476

Bases of 128372426

• Binary: 111101001101100111011001010₂
• Hexadecimal: 0x7A6CECA
• Base-36: 24FGSQ

Squares and roots of 128372426

• 128372426 squared (128372426²) is 16479479757125476
• 128372426 cubed (128372426³) is 2115510795640088140524776
• The square root of 128372426 is 11330.1556035211
• The cube root of 128372426 is 504.4567251731

Scales and comparisons

• 128,372,426 seconds is equal to 4 years, 4 weeks, 1 day, 19 hours, 26 seconds.
• To count from 1 to 128,372,426 would take you about six 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 128372426 cubic inches would be around 42 feet tall.

Recreational maths with 128372426

• 128372426 backwards is 624273821
• The number of decimal digits it has is: 9
• The sum of 128372426's digits is 35
• More coming soon!