128997985321984

Names of 128997985321984

• Cardinal: 128997985321984 can be written as One hundred twenty-eight trillion, nine hundred ninety-seven billion, nine hundred eighty-five million, three hundred twenty-one thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 1.28997985321984 × 10¹⁴

Factors of 128997985321984

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 5072

Divisors of 128997985321984

• Number of divisors d(n): 99
• Complete list of divisors:
  1 2 4 8 16 32 64 71 128 142 256 284 512 568 1024 1136 2272 4544 4999 5041 9088 9998 10082 18176 19996 20164 36352 39992 40328 72704 79984 80656 159968 161312 319936 322624 354929 639872 645248 709858 1279744 1290496 1419716 2559488 2580992 2839432 5118976 5161984 5678864 11357728 22715456 24990001 25199959 45430912 49980002 50399918 90861824 99960004 100799836 181723648 199920008 201599672 363447296 399840016 403199344 799680032 806398688 1599360064 1612797376 1774290071 3198720128 3225594752 3548580142 6397440256 6451189504 7097160284 12794880512 12902379008 14194320568 25589761024 25804758016 28388641136 56777282272 113554564544 125974595041 227109129088 251949190082 454218258176 503898380164 908436516352 1007796760328 1816873032704 2015593520656 4031187041312 8062374082624 16124748165248 32249496330496 64498992660992 128997985321984
• Sum of all divisors σ(n): 261605453911311
• Sum of proper divisors (its aliquot sum) s(n): 132607468589327
• 128997985321984 is an abundant number, because the sum of its proper divisors (132607468589327) is greater than itself. Its abundance is 3609483267343

Bases of 128997985321984

• Binary: 11101010101001010101111000101111000010000000000₂
• Hexadecimal: 0x7552AF178400
• Base-36: 19Q4UTTXJ4

Squares and roots of 128997985321984

• 128997985321984 squared (128997985321984²) is 16640480217130799508153696256
• 128997985321984 cubed (128997985321984³) is 2146588422800204000223461236159403895291904
• 128997985321984 is a perfect square number. Its square root is 11357728
• The cube root of 128997985321984 is 50527.4804290263

Scales and comparisons

• 128,997,985,321,984 seconds is equal to 4,101,736 years, 47 weeks, 4 days, 12 hours, 33 minutes, 4 seconds.
• To count from 1 to 128,997,985,321,984 would take you about ten million, two hundred fifty-four thousand, three hundred forty-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 128997985321984 cubic inches would be around 4210.6 feet tall.

Recreational maths with 128997985321984

• 128997985321984 backwards is 489123589799821
• The number of decimal digits it has is: 15
• The sum of 128997985321984's digits is 85
• More coming soon!