128640696002420

Names of 128640696002420

• Cardinal: 128640696002420 can be written as One hundred twenty-eight trillion, six hundred forty billion, six hundred ninety-six million, two thousand, four hundred twenty.

Scientific notation

• Scientific notation: 1.2864069600242 × 10¹⁴

Factors of 128640696002420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 248

Divisors of 128640696002420

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 7 10 14 20 28 35 49 70 98 103 131 140 196 206 245 262 343 412 490 515 524 655 686 721 917 980 1030 1310 1372 1442 1715 1834 2060 2620 2884 3430 3605 3668 4585 5047 6419 6860 7210 9170 10094 10609 12838 13493 14420 17161 18340 20188 21218 25235 25676 26986 32095 34322 35329 42436 44933 50470 53045 53972 64190 67465 68644 70658 74263 85805 89866 94451 100940 106090 120127 128380 134930 141316 148526 171610 176645 179732 188902 212180 224665 240254 269860 297052 343220 353290 371315 377804 449330 472255 480508 519841 600635 661157 706580 742630 840889 898660 944510 1039682 1092727 1201270 1322314 1389779 1485260 1681778 1767583 1889020 2079364 2185454 2402540 2599205 2644628 2779558 3305785 3363556 3535166 3638887 4204445 4370908 4628099 5198410 5463635 5559116 5886223 6611570 6948895 7070332 7277774 7649089 8408890 8837915 9256198 9728453 10396820 10927270 11772446 12373081 13223140 13897790 14555548 15298178 16817780 17675830 18194435 18512396 19456906 21854540 23140495 23544892 24746162 27795580 29431115 30596356 35351660 36388870 38245445 38913812 46280990 48642265 49492324 53543623 58862230 61865405 68099171 72777740 76490890 86611567 92561980 97284530 107087246 117724460 123730810 136198342 143147237 152981780 173223134 182061049 194569060 214174492 247461620 267718115 272396684 286294474 340495855 346446268 364122098 374805361 433057835 476694197 535436230 572588948 606280969 680991710 715736185 728244196 749610722 866115670 910305245 953388394 1002030659 1070872460 1212561938 1274427343 1361983420 1431472370 1499221444 1732231340 1820610490 1874026805 1906776788 2004061318 2383470985 2425123876 2548854686 2862944740 3031404845 3641220980 3748053610 4008122636 4766941970 5010153295 5097709372 6062809690 6372136715 7014214613 7496107220 8920991401 9533883940 10020306590 12125619380 12744273430 14028429226 17841982802 18752288047 20040613180 25488546860 28056858452 35071073065 35683965604 37504576094 44604957005 49099502291 62446939807 70142146130 75009152188 89209914010 93761440235 98199004582 124893879614 131266016329 140284292260 178419828020 187522880470 196398009164 245497511455 249787759228 262532032658 312234699035 375045760940 490995022910 525064065316 624469398070 656330081645 918862114303 981990045820 1248938796140 1312660163290 1837724228606 2625320326580 3675448457212 4594310571515 6432034800121 9188621143030 12864069600242 18377242286060 25728139200484 32160174000605 64320348001210 128640696002420
• Sum of all divisors σ(n): 320574037056000
• Sum of proper divisors (its aliquot sum) s(n): 191933341053580
• 128640696002420 is an abundant number, because the sum of its proper divisors (191933341053580) is greater than itself. Its abundance is 63292645051160

Bases of 128640696002420

• Binary: 11101001111111101111110111111010010011101110100₂
• Hexadecimal: 0x74FF7EFD2774
• Base-36: 19LKPWZU5W

Squares and roots of 128640696002420

• 128640696002420 squared (128640696002420²) is 16548428667987036968645856400
• 128640696002420 cubed (128640696002420³) is 2128801381596252552000861774276177372488000
• The square root of 128640696002420 is 11341988.1856057317
• The cube root of 128640696002420 is 50480.7881700105

Scales and comparisons

• 128,640,696,002,420 seconds is equal to 4,090,376 years, 11 weeks, 3 days, 11 hours, 20 minutes, 20 seconds.
• To count from 1 to 128,640,696,002,420 would take you about ten million, two hundred twenty-five thousand, nine hundred forty 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 128640696002420 cubic inches would be around 4206.7 feet tall.

Recreational maths with 128640696002420

• 128640696002420 backwards is 024200696046821
• The number of decimal digits it has is: 15
• The sum of 128640696002420's digits is 50
• More coming soon!