129838907392

Names of 129838907392

• Cardinal: 129838907392 can be written as One hundred twenty-nine billion, eight hundred thirty-eight million, nine hundred seven thousand, three hundred ninety-two.

Scientific notation

• Scientific notation: 1.29838907392 × 10¹¹

Factors of 129838907392

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 302

Divisors of 129838907392

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 8 16 32 64 89 128 178 211 256 356 422 512 712 844 1024 1424 1688 2048 2848 3376 4096 5696 6752 8192 11392 13504 16384 18779 22784 27008 32768 37558 44521 45568 54016 75116 89042 91136 108032 150232 178084 182272 216064 300464 356168 364544 432128 600928 712336 729088 864256 1201856 1424672 1458176 1728512 2403712 2849344 2916352 3457024 3962369 4807424 5698688 6914048 7924738 9614848 11397376 15849476 19229696 22794752 31698952 38459392 45589504 63397904 76918784 91179008 126795808 153837568 182358016 253591616 307675136 364716032 507183232 615350272 729432064 1014366464 1458864128 2028732928 4057465856 8114931712 16229863424 32459726848 64919453696 129838907392
• Sum of all divisors σ(n): 263841943950
• Sum of proper divisors (its aliquot sum) s(n): 134003036558
• 129838907392 is an abundant number, because the sum of its proper divisors (134003036558) is greater than itself. Its abundance is 4164129166

Bases of 129838907392

• Binary: 1111000111011000000001000000000000000₂
• Hexadecimal: 0x1E3B008000
• Base-36: 1NNAQE4G

Squares and roots of 129838907392

• 129838907392 squared (129838907392²) is 16858141872748352241664
• 129838907392 cubed (129838907392³) is 2188842721416970755226007699980288
• The square root of 129838907392 is 360331.6630439241
• The cube root of 129838907392 is 5063.7036863657

Scales and comparisons

• 129,838,907,392 seconds is equal to 4,128 years, 24 weeks, 5 days, 3 hours, 9 minutes, 52 seconds.
• To count from 1 to 129,838,907,392 would take you about eight thousand, two hundred fifty-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 129838907392 cubic inches would be around 422 feet tall.

Recreational maths with 129838907392

• 129838907392 backwards is 293709838921
• The number of decimal digits it has is: 12
• The sum of 129838907392's digits is 61
• More coming soon!