138688397568

Names of 138688397568

• Cardinal: 138688397568 can be written as One hundred thirty-eight billion, six hundred eighty-eight million, three hundred ninety-seven thousand, five hundred sixty-eight.

Scientific notation

• Scientific notation: 1.38688397568 × 10¹¹

Factors of 138688397568

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 2384

Divisors of 138688397568

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 61 63 64 72 84 96 112 122 126 128 144 168 183 192 224 244 252 256 288 336 366 384 427 448 488 504 549 576 672 732 768 854 896 976 1008 1098 1152 1281 1344 1464 1708 1792 1952 2016 2196 2304 2311 2562 2688 2928 3416 3721 3843 3904 4032 4392 4622 5124 5376 5856 6832 6933 7442 7686 7808 8064 8784 9244 10248 11163 11712 13664 13866 14884 15372 15616 16128 16177 17568 18488 20496 20799 22326 23424 26047 27328 27732 29768 30744 32354 33489 35136 36976 40992 41598 44652 46848 48531 52094 54656 55464 59536 61488 64708 66978 70272 73952 78141 81984 83196 89304 97062 104188 109312 110928 119072 122976 129416 133956 140544 140971 145593 147904 156282 163968 166392 178608 194124 208376 221856 234423 238144 245952 258832 267912 281942 291186 295808 312564 327936 332784 357216 388248 416752 422913 443712 468846 476288 491904 517664 535824 563884 582372 591616 625128 665568 714432 776496 833504 845826 887424 937692 952576 983808 986797 1035328 1071648 1127768 1164744 1250256 1268739 1331136 1428864 1552992 1667008 1691652 1774848 1875384 1973594 2070656 2143296 2255536 2329488 2500512 2537478 2662272 2857728 2960391 3105984 3334016 3383304 3750768 3947188 4141312 4286592 4511072 4658976 5001024 5074956 5324544 5920782 6211968 6668032 6766608 7501536 7894376 8573184 8599231 8881173 9022144 9317952 10002048 10149912 11841564 12423936 13533216 15003072 15788752 17198462 17762346 18044288 18635904 20004096 20299824 23683128 25797693 27066432 30006144 31577504 34396924 35524692 36088576 37271808 40599648 47366256 51595386 54132864 60012288 60194617 63155008 68793848 71049384 77393079 81199296 94732512 103190772 108265728 120389234 126310016 137587696 142098768 154786158 162398592 180583851 189465024 206381544 240778468 252620032 275175392 284197536 309572316 324797184 361167702 378930048 412763088 481556936 541751553 550350784 568395072 619144632 722335404 757860096 825526176 963113872 1083503106 1100701568 1136790144 1238289264 1444670808 1651052352 1926227744 2167006212 2201403136 2273580288 2476578528 2889341616 3302104704 3852455488 4334012424 4953157056 5778683232 6604209408 7704910976 8668024848 9906314112 11557366464 15409821952 17336049696 19812628224 23114732928 34672099392 46229465856 69344198784 138688397568
• Sum of all divisors σ(n): 464813154624
• Sum of proper divisors (its aliquot sum) s(n): 326124757056
• 138688397568 is an abundant number, because the sum of its proper divisors (326124757056) is greater than itself. Its abundance is 187436359488

Bases of 138688397568

• Binary: 10000001001010011110010000000100000000₂
• Hexadecimal: 0x204A790100
• Base-36: 1RPNHOG0

Squares and roots of 138688397568

• 138688397568 squared (138688397568²) is 19234471619979628314624
• 138688397568 cubed (138688397568³) is 2667598047042147703759443100434432
• The square root of 138688397568 is 372408.9117730669
• The cube root of 138688397568 is 5176.2277506495

Scales and comparisons

• 138,688,397,568 seconds is equal to 4,409 years, 44 weeks, 5 days, 18 hours, 52 minutes, 48 seconds.
• To count from 1 to 138,688,397,568 would take you about eight thousand, eight hundred nineteen 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 138688397568 cubic inches would be around 431.4 feet tall.

Recreational maths with 138688397568

• 138688397568 backwards is 865793886831
• 138688397568 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138688397568's digits is 72
• More coming soon!