12728135129920

Names of 12728135129920

• Cardinal: 12728135129920 can be written as Twelve trillion, seven hundred twenty-eight billion, one hundred thirty-five million, one hundred twenty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.272813512992 × 10¹³

Factors of 12728135129920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 26991

Divisors of 12728135129920

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 37 40 56 64 70 74 80 112 140 148 160 185 224 259 280 296 320 370 448 518 560 592 740 1036 1120 1184 1295 1480 2072 2240 2368 2590 2960 4144 5180 5920 8191 8288 10360 11840 16382 16576 18749 20720 32764 37498 40955 41440 57337 65528 74996 81910 82880 93745 114674 131056 131243 149992 163820 187490 229348 262112 262486 286685 299984 303067 327640 374980 458696 524224 524972 573370 599968 606134 655280 656215 693713 749960 917392 1049944 1146740 1199936 1212268 1310560 1312430 1387426 1499920 1515335 1834784 2099888 2121469 2293480 2424536 2621120 2624860 2774852 2999840 3030670 3468565 3669568 4199776 4242938 4586960 4849072 4855991 5249720 5549704 5999680 6061340 6937130 8399552 8485876 9173920 9698144 9711982 10499440 10607345 11099408 12122680 13874260 16971752 18347840 19396288 19423964 20998880 21214690 22198816 24245360 24279955 27748520 33943504 38847928 41997760 42429380 44397632 48490720 48559910 55497040 67887008 77695856 84858760 96981440 97119820 110994080 135774016 153573059 155391712 169717520 194239640 221988160 307146118 310783424 339435040 388479280 614292236 678870080 767865295 776958560 1075011413 1228584472 1535730590 1553917120 2150022826 2457168944 3071461180 4300045652 4914337888 5375057065 5682203183 6142922360 8600091304 9828675776 10750114130 11364406366 12285844720 17200182608 21500228260 22728812732 24571689440 28411015915 34400365216 39775422281 43000456520 45457625464 49143378880 56822031830 68800730432 79550844562 86000913040 90915250928 113644063660 159101689124 172001826080 181830501856 198877111405 227288127320 318203378248 344003652160 363661003712 397754222810 454576254640 636406756496 795508445620 909152509280 1272813512992 1591016891240 1818305018560 2545627025984 3182033782480 6364067564960 12728135129920
• Sum of all divisors σ(n): 35581132800000
• Sum of proper divisors (its aliquot sum) s(n): 22852997670080
• 12728135129920 is an abundant number, because the sum of its proper divisors (22852997670080) is greater than itself. Its abundance is 10124862540160

Bases of 12728135129920

• Binary: 10111001001101111111111110010001101101000000₂
• Hexadecimal: 0xB937FF91B40
• Base-36: 4IF830X8G

Squares and roots of 12728135129920

• 12728135129920 squared (12728135129920²) is 162005423885503615279206400
• 12728135129920 cubed (12728135129920³) is 2062026926994659229466431449138495488000
• The square root of 12728135129920 is 3567651.2063148775
• The cube root of 12728135129920 is 23348.2817706629

Scales and comparisons

• 12,728,135,129,920 seconds is equal to 404,715 years, 16 weeks, 6 days, 19 hours, 38 minutes, 40 seconds.
• To count from 1 to 12,728,135,129,920 would take you about one million, eleven thousand, seven hundred eighty-eight 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 12728135129920 cubic inches would be around 1945.7 feet tall.

Recreational maths with 12728135129920

• 12728135129920 backwards is 02992153182721
• The number of decimal digits it has is: 14
• The sum of 12728135129920's digits is 52
• More coming soon!