128995521732

Names of 128995521732

• Cardinal: 128995521732 can be written as One hundred twenty-eight billion, nine hundred ninety-five million, five hundred twenty-one thousand, seven hundred thirty-two.

Scientific notation

• Scientific notation: 1.28995521732 × 10¹¹

Factors of 128995521732

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 201474

Divisors of 128995521732

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 9 11 12 14 18 21 22 27 28 33 36 42 44 49 54 63 66 77 84 98 99 108 121 126 132 147 154 189 196 198 231 242 252 294 297 308 363 378 396 441 462 484 539 588 594 693 726 756 847 882 924 1078 1089 1188 1323 1386 1452 1617 1694 1764 2079 2156 2178 2541 2646 2772 3234 3267 3388 4158 4356 4851 5082 5292 5929 6468 6534 7623 8316 9702 10164 11858 13068 14553 15246 17787 19404 22869 23716 29106 30492 35574 45738 53361 58212 71148 91476 106722 160083 201451 213444 320166 402902 604353 640332 805804 1208706 1410157 1813059 2215961 2417412 2820314 3626118 4230471 4431922 5439177 5640628 6647883 7252236 8460942 8863844 9871099 10878354 12691413 13295766 15511727 16921884 19742198 19943649 21756708 24375571 25382826 26591532 29613297 31023454 38074239 39484396 39887298 46535181 48751142 50765652 59226594 59830947 62046908 73126713 76148478 79774596 88839891 93070362 97502284 108582089 118453188 119661894 139605543 146253426 152296956 170628997 177679782 186140724 217164178 219380139 239323788 266519673 279211086 292506852 325746267 341257994 355359564 418816629 434328356 438760278 511886991 533039346 558422172 651492534 658140417 682515988 837633258 877520556 977238801 1023773982 1066078692 1194402979 1302985068 1316280834 1535660973 1675266516 1954477602 2047547964 2388805958 2632561668 2931716403 3071321946 3583208937 3908955204 4606982919 4777611916 5863432806 6142643892 7166417874 9213965838 10749626811 11726865612 14332835748 18427931676 21499253622 32248880433 42998507244 64497760866 128995521732
• Sum of all divisors σ(n): 427618131360
• Sum of proper divisors (its aliquot sum) s(n): 298622609628
• 128995521732 is an abundant number, because the sum of its proper divisors (298622609628) is greater than itself. Its abundance is 169627087896

Bases of 128995521732

• Binary: 1111000001000101110110111010011000100₂
• Hexadecimal: 0x1E08BB74C4
• Base-36: 1N9CLPL0

Squares and roots of 128995521732

• 128995521732 squared (128995521732²) is 16639844626910884279824
• 128995521732 cubed (128995521732³) is 2146465439187786405145373961135168
• The square root of 128995521732 is 359159.4656026763
• The cube root of 128995521732 is 5052.7158770807

Scales and comparisons

• 128,995,521,732 seconds is equal to 4,101 years, 34 weeks, 1 day, 17 hours, 22 minutes, 12 seconds.
• To count from 1 to 128,995,521,732 would take you about eight thousand, two hundred three 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 128995521732 cubic inches would be around 421.1 feet tall.

Recreational maths with 128995521732

• 128995521732 backwards is 237125599821
• 128995521732 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128995521732's digits is 54
• More coming soon!