128520394512

Names of 128520394512

• Cardinal: 128520394512 can be written as One hundred twenty-eight billion, five hundred twenty million, three hundred ninety-four thousand, five hundred twelve.

Scientific notation

• Scientific notation: 1.28520394512 × 10¹¹

Factors of 128520394512

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 532

Divisors of 128520394512

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 37 43 48 53 74 86 106 111 113 129 148 159 172 212 222 226 258 281 296 318 339 344 424 444 452 516 562 592 636 678 688 843 848 888 904 1032 1124 1272 1356 1591 1686 1776 1808 1961 2064 2248 2279 2544 2712 3182 3372 3922 4181 4496 4558 4773 4859 5424 5883 5989 6364 6744 6837 7844 8362 9116 9546 9718 10397 11766 11978 12083 12543 12728 13488 13674 14577 14893 15688 16724 17967 18232 19092 19436 20794 23532 23956 24166 25086 25456 27348 29154 29786 31191 31376 31753 33448 35934 36249 36464 38184 38872 41588 44679 47064 47912 48332 50172 54696 58308 59572 62382 63506 66896 71868 72498 76368 77744 83176 84323 89358 94128 95259 95824 96664 100344 109392 116616 119144 124764 127012 143736 144996 166352 168646 178716 179783 190518 193328 200688 221593 233232 238288 249528 252969 254024 257527 287472 289992 337292 357432 359566 381036 443186 447071 499056 505938 508048 515054 539349 551041 579984 640399 664779 674584 714864 719132 762072 772581 886372 894142 1011876 1030108 1078698 1102082 1174861 1280798 1329558 1341213 1349168 1365379 1438264 1524144 1545162 1653123 1682909 1772744 1788284 1921197 2023752 2060216 2157396 2204164 2349722 2561596 2659116 2682426 2730758 2876528 3090324 3306246 3365818 3524583 3545488 3576568 3842394 4047504 4096137 4120432 4314792 4408328 4699444 5048727 5123192 5318232 5364852 5461516 6180648 6612492 6731636 7049166 7153136 7684788 8192274 8629584 8816656 9398888 9528499 10097454 10246384 10636464 10729704 10923032 12361296 13224984 13463272 14098332 15369576 16384548 18797776 19056998 20194908 21459408 21846064 23694763 26449968 26926544 28196664 28585497 30739152 32769096 38113996 40389816 47389526 50519023 56393328 57170994 62267633 65538192 71084289 72365087 76227992 80779632 94779052 101038046 114341988 124535266 142168578 144730174 151557069 152455984 186802899 189558104 202076092 217095261 228683976 249070532 284337156 289460348 303114138 373605798 379116208 404152184 434190522 457367952 498141064 568674312 578920696 606228276 747211596 808304368 868381044 996282128 1137348624 1157841392 1212456552 1494423192 1736762088 2424913104 2677508219 2988846384 3473524176 5355016438 8032524657 10710032876 16065049314 21420065752 32130098628 42840131504 64260197256 128520394512
• Sum of all divisors σ(n): 359919749376
• Sum of proper divisors (its aliquot sum) s(n): 231399354864
• 128520394512 is an abundant number, because the sum of its proper divisors (231399354864) is greater than itself. Its abundance is 102878960352

Bases of 128520394512

• Binary: 1110111101100011010011001011100010000₂
• Hexadecimal: 0x1DEC699710
• Base-36: 1N1HQ32O

Squares and roots of 128520394512

• 128520394512 squared (128520394512²) is 16517491805520119718144
• 128520394512 cubed (128520394512³) is 2122834563194172965529337124425728
• The square root of 128520394512 is 358497.4121412873
• The cube root of 128520394512 is 5046.5047147909

Scales and comparisons

• 128,520,394,512 seconds is equal to 4,086 years, 28 weeks, 4 days, 13 hours, 35 minutes, 12 seconds.
• To count from 1 to 128,520,394,512 would take you about eight thousand, one hundred seventy-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 128520394512 cubic inches would be around 420.5 feet tall.

Recreational maths with 128520394512

• 128520394512 backwards is 215493025821
• The number of decimal digits it has is: 12
• The sum of 128520394512's digits is 42
• More coming soon!