138665208084642072

Names of 138665208084642072

• Cardinal: 138665208084642072 can be written as One hundred thirty-eight quadrillion, six hundred sixty-five trillion, two hundred eight billion, eighty-four million, six hundred forty-two thousand and seventy-two.

Scientific notation

• Scientific notation: 1.38665208084642072 × 10¹⁷

Factors of 138665208084642072

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 149

Divisors of 138665208084642072

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 8 9 12 17 18 24 27 34 36 51 54 68 72 81 102 108 127 136 153 162 204 216 243 254 306 324 381 408 459 486 508 612 648 762 918 972 1016 1143 1224 1377 1524 1836 1944 2159 2286 2754 3048 3429 3672 4131 4318 4572 5508 6477 6858 8262 8636 9144 10287 11016 12954 13716 16129 16524 17272 19431 20574 25908 27432 30861 32258 33048 38862 41148 48387 51816 58293 61722 64516 77724 82296 96774 116586 123444 129032 145161 155448 174879 193548 233172 246888 274193 290322 349758 387096 435483 466344 524637 548386 580644 699516 822579 870966 1049274 1096772 1161288 1306449 1399032 1645158 1741932 2048383 2098548 2193544 2467737 2612898 3290316 3483864 3919347 4096766 4197096 4935474 5225796 6145149 6580632 7403211 7838694 8193532 9870948 10451592 12290298 14806422 15677388 16387064 18435447 19741896 22209633 24580596 29612844 31354776 34822511 36870894 44419266 49161192 55306341 59225688 66628899 69645022 73741788 88838532 104467533 110612682 133257798 139290044 147483576 165919023 177677064 208935066 221225364 260144641 266515596 278580088 313402599 331838046 417870132 442450728 497757069 520289282 533031192 626805198 663676092 780433923 835740264 940207797 995514138 1040578564 1253610396 1327352184 1560867846 1880415594 1991028276 2081157128 2341301769 2507220792 2820623391 3121735692 3760831188 3982056552 4422458897 4682603538 5641246782 6243471384 7023905307 7521662376 8461870173 8844917794 9365207076 11282493564 13267376691 14047810614 16923740346 17689835588 18730414152 21071715921 22564987128 26534753382 28095621228 33038369407 33847480692 35379671176 39802130073 42143431842 53069506764 56191242456 63215147763 66076738814 67694961384 79604260146 84286863684 99115108221 106139013528 119406390219 126430295526 132153477628 159208520292 168573727368 198230216442 238812780438 252860591052 264306955256 297345324663 318417040584 358219170657 396460432884 477625560876 505721182104 561652279919 594690649326 716438341314 792920865768 892035973989 955251121752 1074657511971 1123304559838 1189381298652 1432876682628 1684956839757 1784071947978 2149315023942 2246609119676 2378762597304 2676107921967 2865753365256 3369913679514 3568143895956 4195872914689 4298630047884 4493218239352 5054870519271 5352215843934 6739827359028 7136287791912 8028323765901 8391745829378 8597260095768 10109741038542 10704431687868 12587618744067 13479654718056 15164611557813 16056647531802 16783491658756 20219482077084 21408863375736 25175237488134 30329223115626 32113295063604 33566983317512 37762856232201 40438964154168 45493834673439 50350474976268 60658446231252 64226590127208 71329839549713 75525712464402 90987669346878 100700949952536 113288568696603 121316892462504 136481504020317 142659679099426 151051424928804 181975338693756 213989518649139 226577137393206 272963008040634 285319358198852 302102849857608 339865706089809 363950677387512 427979037298278 453154274786412 545926016081268 570638716397704 641968555947417 679731412179618 855958074596556 906308549572824 1019597118269427 1091852032162536 1283937111894834 1359462824359236 1711916149193112 1925905667842251 2039194236538854 2567874223789668 2718925648718472 3851811335684502 4078388473077708 5135748447579336 5777717003526753 7703622671369004 8156776946155416 11555434007053506 15407245342738008 17333151010580259 23110868014107012 34666302021160518 46221736028214024 69332604042321036 138665208084642072
• Sum of all divisors σ(n): 415643170929091560
• Sum of proper divisors (its aliquot sum) s(n): 276977962844449488
• 138665208084642072 is an abundant number, because the sum of its proper divisors (276977962844449488) is greater than itself. Its abundance is 138312754759807416

Bases of 138665208084642072

• Binary: 111101100101000110100010110100110100101110011100100011000₂
• Hexadecimal: 0x1ECA345A6973918
• Base-36: 11XCPP6G0PI0

Squares and roots of 138665208084642072

• 138665208084642072 squared (138665208084642072²) is 19228039933157085046026232352453184
• 138665208084642072 cubed (138665208084642072³) is 2666260158391034435022074262385125742287343776757248
• The square root of 138665208084642072 is 372377776.0348247099
• The cube root of 138665208084642072 is 517593.9236396981
• Being both a perfect square and a perfect cube, 138665208084642072 is also a perfect sixth number.

Scales and comparisons

• 138,665,208,084,642,072 seconds is equal to 4,409,124,697 years, 22 weeks, 6 days, 13 hours, 1 minute, 12 seconds.
• To count from 1 to 138,665,208,084,642,072 would take you about thirteen billion, two hundred twenty-seven million, three hundred seventy-four thousand and ninety-two 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 138665208084642072 cubic inches would be around 43132.8 feet tall.

Recreational maths with 138665208084642072

• 138665208084642072 backwards is 270246480802566831
• 138665208084642072 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 138665208084642072's digits is 72
• More coming soon!