128326172672

Names of 128326172672

• Cardinal: 128326172672 can be written as One hundred twenty-eight billion, three hundred twenty-six million, one hundred seventy-two thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.28326172672 × 10¹¹

Factors of 128326172672

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 248

Divisors of 128326172672

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 8 16 19 32 38 64 76 128 152 227 256 304 454 512 608 908 1024 1216 1816 2048 2432 3632 4096 4313 4864 7264 8192 8626 9728 14528 16384 17252 19456 29056 32768 34504 38912 51529 58112 65536 69008 77824 103058 116224 131072 138016 155648 206116 232448 276032 311296 412232 464896 552064 622592 824464 929792 979051 1104128 1245184 1648928 1859584 1958102 2208256 2490368 3297856 3719168 3916204 4416512 6595712 7438336 7832408 8833024 13191424 14876672 15664816 17666048 26382848 29753344 31329632 35332096 52765696 62659264 70664192 105531392 125318528 141328384 211062784 250637056 282656768 422125568 501274112 565313536 844251136 1002548224 1688502272 2005096448 3377004544 4010192896 6754009088 8020385792 16040771584 32081543168 64163086336 128326172672
• Sum of all divisors σ(n): 271354705020
• Sum of proper divisors (its aliquot sum) s(n): 143028532348
• 128326172672 is an abundant number, because the sum of its proper divisors (143028532348) is greater than itself. Its abundance is 14702359676

Bases of 128326172672

• Binary: 1110111100000110101100000000000000000₂
• Hexadecimal: 0x1DE0D60000
• Base-36: 1MYA38JK

Squares and roots of 128326172672

• 128326172672 squared (128326172672²) is 16467606592643959619584
• 128326172672 cubed (128326172672³) is 2113224927102194327160531816808448
• The square root of 128326172672 is 358226.4265405331
• The cube root of 128326172672 is 5043.9613166933

Scales and comparisons

• 128,326,172,672 seconds is equal to 4,080 years, 19 weeks, 3 days, 15 hours, 4 minutes, 32 seconds.
• To count from 1 to 128,326,172,672 would take you about eight thousand, one hundred sixty 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 128326172672 cubic inches would be around 420.3 feet tall.

Recreational maths with 128326172672

• 128326172672 backwards is 276271623821
• The number of decimal digits it has is: 12
• The sum of 128326172672's digits is 47
• More coming soon!