138978794852289

Names of 138978794852289

• Cardinal: 138978794852289 can be written as One hundred thirty-eight trillion, nine hundred seventy-eight billion, seven hundred ninety-four million, eight hundred fifty-two thousand, two hundred eighty-nine.

Scientific notation

• Scientific notation: 1.38978794852289 × 10¹⁴

Factors of 138978794852289

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 732

Divisors of 138978794852289

• Number of divisors d(n): 320
• Complete list of divisors:
  1 3 7 9 21 27 31 49 63 81 93 147 189 217 243 279 343 441 567 651 691 729 837 961 1029 1323 1519 1701 1953 2073 2187 2511 2883 3087 3969 4557 4837 5103 5859 6219 6561 6727 7533 8649 9261 10633 11907 13671 14511 15309 17577 18657 19683 20181 21421 22599 25947 27783 29791 31899 33859 35721 41013 43533 45927 47089 52731 55971 60543 64263 67797 77841 83349 89373 95697 101577 107163 123039 130599 137781 141267 149947 158193 167913 181629 192789 203391 208537 233523 237013 250047 268119 287091 304731 321489 329623 369117 391797 423801 449841 474579 503739 544887 578367 610173 625611 664051 700569 711039 750141 804357 861273 914193 964467 988869 1049629 1107351 1175391 1271403 1349523 1423737 1459759 1511217 1634661 1735101 1876833 1992153 2101707 2133117 2250423 2413071 2583819 2742579 2966607 3148887 3322053 3526173 3814209 4048569 4271211 4379277 4533651 4648357 4903983 5205303 5630499 5976459 6305121 6399351 6751269 7239213 7347403 7751457 8227737 8899821 9446661 9966159 10218313 10578519 11442627 12145707 13137831 13600953 13945071 14711949 15615909 16891497 17929377 18915363 19198053 20585581 21717639 22042209 23254371 24683211 26699463 28339983 29898477 30654939 31735557 32538499 34327881 36437121 39413493 41835213 44135847 46847727 50674491 53788131 57594159 61756743 65152917 66126627 69763113 74049633 80098389 85019949 91964817 95206671 97615497 102983643 109311363 118240479 125505639 132407541 140543181 144099067 152023473 161364393 172782477 185270229 195458751 198379881 209289339 222148899 227769493 240295167 255059847 275894451 292846491 308950929 327934089 354721437 376516917 421629543 432297201 456070419 484093179 518347431 555810687 586376253 595139643 666446697 683308479 720885501 765179541 827683353 878539473 926852787 983802267 1008693469 1064164311 1129550751 1296891603 1368211257 1452279537 1555042293 1667432061 1785418929 2049925437 2162656503 2295538623 2483050059 2635618419 2951406801 3026080407 3192492933 3388652253 3890674809 4104633771 4356838611 4665126879 5002296183 5356256787 6149776311 6487969509 6886615869 7060854283 7449150177 7906855257 9078241221 9577478799 10165956759 11672024427 13070515833 15006888549 16068770361 18449328933 20659847607 21182562849 22347450531 23720565771 27234723663 28732436397 30497870277 35016073281 45020665647 48206311083 55347986799 63547688547 67042351593 71161697313 81704170989 91493610831 105048219843 135061996941 144618933249 166043960397 190643065641 201127054779 213485091939 245112512967 315144659529 405185990823 498131881191 571929196923 640455275817 735337538901 945433978587 1494395643573 1715787590769 2206012616703 2836301935761 4483186930719 5147362772307 6618037850109 15442088316921 19854113550327 46326264950763 138978794852289
• Sum of all divisors σ(n): 251574334668800
• Sum of proper divisors (its aliquot sum) s(n): 112595539816511
• 138978794852289 is a deficient number, because the sum of its proper divisors (112595539816511) is less than itself. Its deficiency is 26383255035778

Bases of 138978794852289

• Binary: 11111100110011010000101101100101100111111000001₂
• Hexadecimal: 0x7E6685B2CFC1
• Base-36: 1D9HZ64N29

Squares and roots of 138978794852289

• 138978794852289 squared (138978794852289²) is 19315105418594631445328539521
• 138978794852289 cubed (138978794852289³) is 2684390073521198935254837196317533293813569
• The square root of 138978794852289 is 11788926.7896738167
• The cube root of 138978794852289 is 51798.3803715717

Scales and comparisons

• 138,978,794,852,289 seconds is equal to 4,419,095 years, 40 weeks, 6 days, 8 hours, 18 minutes, 9 seconds.
• To count from 1 to 138,978,794,852,289 would take you about eleven million, forty-seven thousand, seven hundred thirty-nine 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 138978794852289 cubic inches would be around 4316.5 feet tall.

Recreational maths with 138978794852289

• 138978794852289 backwards is 982258497879831
• The number of decimal digits it has is: 15
• The sum of 138978794852289's digits is 90
• More coming soon!