138428205587065940

Names of 138428205587065940

• Cardinal: 138428205587065940 can be written as One hundred thirty-eight quadrillion, four hundred twenty-eight trillion, two hundred five billion, five hundred eighty-seven million, sixty-five thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.3842820558706594 × 10¹⁷

Factors of 138428205587065940

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 35016696

Divisors of 138428205587065940

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 271 364 455 542 910 1084 1355 1820 1897 2710 3523 3794 5420 7046 7588 8017 9485 14092 16034 17615 18970 24661 32068 35230 37940 40085 49322 56119 70460 80170 98644 104221 112238 123305 160340 208442 224476 246610 280595 416884 493220 521105 561190 729547 1042210 1122380 1459094 2084420 2172607 2918188 3647735 4345214 7295470 8690428 10863035 14590940 15208249 21726070 28243891 30416498 35008381 43452140 56487782 60832996 70016762 76041245 112975564 140033524 141219455 152082490 175041905 197707237 245058667 282438910 304164980 350083810 395414474 455108953 490117334 564877820 700167620 790828948 910217906 980234668 988536185 1225293335 1820435812 1977072370 2275544765 2450586670 3185762671 3954144740 4551089530 4901173340 6371525342 9102179060 9487271251 12743050684 15928813355 18974542502 31857626710 37949085004 47436356255 63715253420 66410898757 94872712510 123334526263 132821797514 189745425020 246669052526 265643595028 280662190477 332054493785 493338105052 561324380954 616672631315 664108987570 863341683841 1122648761908 1233345262630 1328217975140 1403310952385 1726683367682 1964635333339 2466690525260 2806621904770 3453366735364 3648608476201 3929270666678 4316708419205 5613243809540 7297216952402 7858541333356 8633416838410 9823176666695 14594433904804 17266833676820 18243042381005 19646353333390 25540259333407 36486084762010 39292706666780 51080518666814 72972169524020 76059453619267 102161037333628 127701296667035 152118907238534 255402593334070 304237814477068 380297268096335 510805186668140 532416175334869 760594536192670 988772897050471 1064832350669738 1521189072385340 1977545794100942 2129664701339476 2662080876674345 3955091588201884 4943864485252355 5324161753348690 6921410279353297 9887728970504710 10648323506697380 13842820558706594 19775457941009420 27685641117413188 34607051396766485 69214102793532970 138428205587065940
• Sum of all divisors σ(n): 359148707831359488
• Sum of proper divisors (its aliquot sum) s(n): 220720502244293548
• 138428205587065940 is an abundant number, because the sum of its proper divisors (220720502244293548) is greater than itself. Its abundance is 82292296657227608

Bases of 138428205587065940

• Binary: 111101011110010111011100000110100111010010110110001010100₂
• Hexadecimal: 0x1EBCBB834E96C54
• Base-36: 11V0PBQG6P1W

Squares and roots of 138428205587065940

• 138428205587065940 squared (138428205587065940²) is 19162368102054993926321817908083600
• 138428205587065940 cubed (138428205587065940³) is 2652612231166303262965562446403276510655932232584000
• The square root of 138428205587065940 is 372059411.3674131211
• The cube root of 138428205587065940 is 517298.8700369677

Scales and comparisons

• 138,428,205,587,065,940 seconds is equal to 4,401,588,751 years, 5 weeks, 6 days, 20 hours, 32 minutes, 20 seconds.
• To count from 1 to 138,428,205,587,065,940 would take you about thirteen billion, two hundred four million, seven hundred sixty-six thousand, two hundred fifty-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 138428205587065940 cubic inches would be around 43108.2 feet tall.

Recreational maths with 138428205587065940

• 138428205587065940 backwards is 049560785502824831
• The number of decimal digits it has is: 18
• The sum of 138428205587065940's digits is 77
• More coming soon!