128827639488

Names of 128827639488

• Cardinal: 128827639488 can be written as One hundred twenty-eight billion, eight hundred twenty-seven million, six hundred thirty-nine thousand, four hundred eighty-eight.

Scientific notation

• Scientific notation: 1.28827639488 × 10¹¹

Factors of 128827639488

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 15604171

Divisors of 128827639488

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 43 48 64 86 96 129 172 192 258 344 516 688 1032 1376 2064 2752 4128 8256 15604123 31208246 46812369 62416492 93624738 124832984 187249476 249665968 374498952 499331936 670977289 748997904 998663872 1341954578 1497995808 2012931867 2683909156 2995991616 4025863734 5367818312 8051727468 10735636624 16103454936 21471273248 32206909872 42942546496 64413819744 128827639488
• Sum of all divisors σ(n): 348783379648
• Sum of proper divisors (its aliquot sum) s(n): 219955740160
• 128827639488 is an abundant number, because the sum of its proper divisors (219955740160) is greater than itself. Its abundance is 91128100672

Bases of 128827639488

• Binary: 1110111111110101110011100011011000000₂
• Hexadecimal: 0x1DFEB9C6C0
• Base-36: 1N6KNETC

Squares and roots of 128827639488

• 128827639488 squared (128827639488²) is 16596560696050096902144
• 128827639488 cubed (128827639488³) is 2138095738091452229296872846262272
• The square root of 128827639488 is 358925.6740440841
• The cube root of 128827639488 is 5050.5229597693

Scales and comparisons

• 128,827,639,488 seconds is equal to 4,096 years, 16 weeks, 4 days, 15 hours, 24 minutes, 48 seconds.
• To count from 1 to 128,827,639,488 would take you about eight thousand, one hundred ninety-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 128827639488 cubic inches would be around 420.9 feet tall.

Recreational maths with 128827639488

• 128827639488 backwards is 884936728821
• The number of decimal digits it has is: 12
• The sum of 128827639488's digits is 66
• More coming soon!