128368544767172440

Names of 128368544767172440

• Cardinal: 128368544767172440 can be written as One hundred twenty-eight quadrillion, three hundred sixty-eight trillion, five hundred forty-four billion, seven hundred sixty-seven million, one hundred seventy-two thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.2836854476717244 × 10¹⁷

Factors of 128368544767172440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1021288

Divisors of 128368544767172440

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 40 40093 80186 89797 160372 179594 200465 320744 359188 400930 448985 718376 801860 891391 897970 1603720 1782782 1795940 3565564 3591880 4456955 7131128 8913910 17827820 35655640 3600231121 7200462242 14400924484 18001155605 28801848968 35738539363 36002311210 71477078726 72004622420 80044237627 142954157452 144009244840 160088475254 178692696815 285908314904 320176950508 357385393630 400221188135 640353901016 714770787260 800442376270 1429541574520 1600884752540 3201769505080 3209213619179311 6418427238358622 12836854476717244 16046068095896555 25673708953434488 32092136191793110 64184272383586220 128368544767172440
• Sum of all divisors σ(n): 288839970288783360
• Sum of proper divisors (its aliquot sum) s(n): 160471425521610920
• 128368544767172440 is an abundant number, because the sum of its proper divisors (160471425521610920) is greater than itself. Its abundance is 32102880754438480

Bases of 128368544767172440

• Binary: 111001000000011101000001011100111001011100101111101011000₂
• Hexadecimal: 0x1C80E82E72E5F58
• Base-36: Z3YUNCORLUG

Squares and roots of 128368544767172440

• 128368544767172440 squared (128368544767172440²) is 16478483285641554828008272695553600
• 128368544767172440 cubed (128368544767172440³) is 2115318919347980728912440968680057809991632462784000
• The square root of 128368544767172440 is 358285563.1576193443
• The cube root of 128368544767172440 is 504451.6411796331

Scales and comparisons

• 128,368,544,767,172,440 seconds is equal to 4,081,722,653 years, 32 weeks, 8 hours, 20 minutes, 40 seconds.
• To count from 1 to 128,368,544,767,172,440 would take you about twelve billion, two hundred forty-five million, one hundred sixty-seven thousand, nine 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 128368544767172440 cubic inches would be around 42037.6 feet tall.

Recreational maths with 128368544767172440

• 128368544767172440 backwards is 044271767445863821
• The number of decimal digits it has is: 18
• The sum of 128368544767172440's digits is 79
• More coming soon!