128231365824

Names of 128231365824

• Cardinal: 128231365824 can be written as One hundred twenty-eight billion, two hundred thirty-one million, three hundred sixty-five thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 1.28231365824 × 10¹¹

Factors of 128231365824

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1970241

Divisors of 128231365824

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 113 144 192 226 288 339 452 576 678 904 1017 1356 1808 2034 2712 3616 4068 5424 7232 8136 10848 16272 21696 32544 65088 1970123 3940246 5910369 7880492 11820738 15760984 17731107 23641476 31521968 35462214 47282952 63043936 70924428 94565904 126087872 141848856 189131808 222623899 283697712 378263616 445247798 567395424 667871697 890495596 1134790848 1335743394 1780991192 2003615091 2671486788 3561982384 4007230182 5342973576 7123964768 8014460364 10685947152 14247929536 16028920728 21371894304 32057841456 42743788608 64115682912 128231365824
• Sum of all divisors σ(n): 370804918536
• Sum of proper divisors (its aliquot sum) s(n): 242573552712
• 128231365824 is an abundant number, because the sum of its proper divisors (242573552712) is greater than itself. Its abundance is 114342186888

Bases of 128231365824

• Binary: 1110111011011001011110101110011000000₂
• Hexadecimal: 0x1DDB2F5CC0
• Base-36: 1MWPN740

Squares and roots of 128231365824

• 128231365824 squared (128231365824²) is 16443283181088515198976
• 128231365824 cubed (128231365824³) is 2108544660941787831004875606196224
• The square root of 128231365824 is 358094.0739861523
• The cube root of 128231365824 is 5042.7188580509

Scales and comparisons

• 128,231,365,824 seconds is equal to 4,077 years, 18 weeks, 5 days, 7 hours, 50 minutes, 24 seconds.
• To count from 1 to 128,231,365,824 would take you about eight thousand, one hundred fifty-four 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 128231365824 cubic inches would be around 420.2 feet tall.

Recreational maths with 128231365824

• 128231365824 backwards is 428563132821
• The number of decimal digits it has is: 12
• The sum of 128231365824's digits is 45
• More coming soon!