18938672157808

Names of 18938672157808

• Cardinal: 18938672157808 can be written as Eighteen trillion, nine hundred thirty-eight billion, six hundred seventy-two million, one hundred fifty-seven thousand, eight hundred eight.

Scientific notation

• Scientific notation: 1.8938672157808 × 10¹³

Factors of 18938672157808

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 395

Divisors of 18938672157808

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 8 13 16 19 26 38 52 67 76 97 104 134 152 194 197 208 247 268 304 361 388 394 494 536 722 776 788 871 988 1072 1261 1273 1444 1552 1576 1742 1843 1976 2522 2546 2561 2888 3152 3484 3686 3743 3952 4693 5044 5092 5122 5776 6499 6968 7372 7486 9386 10088 10184 10244 12998 13199 13936 14744 14972 16549 18772 19109 20176 20368 20488 23959 24187 25996 26398 29488 29944 33098 35017 37544 38218 38809 40976 47918 48374 48659 51992 52796 59888 66196 70034 71117 75088 76436 77618 84487 95836 96748 97318 103984 105592 123481 132392 140068 142234 152872 155236 168974 171587 191672 193496 194636 211184 246962 248417 250781 264784 280136 284468 305744 310472 314431 337948 343174 363071 383344 386992 389272 455221 493924 496834 501562 504517 560272 568936 620944 628862 675896 686348 726142 737371 778544 910442 924521 987848 993668 1003124 1009034 1137872 1257724 1280303 1351792 1372696 1452284 1474742 1605253 1820884 1849042 1975696 1987336 2006248 2018068 2346139 2515448 2560606 2600203 2745392 2904568 2949484 3210506 3260153 3641768 3698084 3764473 3974672 4012496 4036136 4692278 4719923 4764839 5030896 5121212 5200406 5809136 5898968 6421012 6520306 6898349 7283536 7396168 7528946 8072272 9384556 9439846 9529678 9585823 10242424 10400812 11797936 12842024 13040612 13796698 14010049 14792336 15057892 16643939 18769112 18879692 19059356 19171646 20484848 20801624 24325757 25684048 26081224 27593396 28020098 30115784 30499807 33287878 33802639 37538224 37759384 38118712 38343292 41603248 48651514 48938149 49403857 52162448 55186792 56040196 60231568 60999614 61942907 66575756 67605278 71524987 75518768 76237424 76686584 89678537 97303028 97876298 98807714 110373584 112080392 121999228 123885814 133151512 135210556 143049974 153373168 179357074 182130637 194606056 195752596 197615428 224160784 243998456 247771628 252219691 266303024 270421112 286099948 316234841 358714148 364261274 389212112 391505192 395230856 462189383 487996912 495543256 504439382 540842224 572199896 632469682 642250141 717428296 728522548 783010384 790461712 924378766 929824831 938673283 991086512 1008878764 1144399792 1264939364 1284500282 1358974753 1434856592 1457045096 1848757532 1859649662 1877346566 2017757528 2529878728 2569000564 2717949506 2914090192 3278855983 3697515064 3719299324 3754693132 4035515056 4792174129 5059757456 5138001128 5435899012 6008461979 6557711966 7395030128 7438598648 7509386264 9584348258 10276002256 10871798024 12016923958 12202752679 13115423932 14877197296 15018772528 17666671789 19168696516 21743596048 24033847916 24405505358 26230847864 35333343578 38337393032 48067695832 48811010716 52461695728 62298263677 70666687156 76674786064 91051308451 96135391664 97622021432 124596527354 141333374312 182102616902 195244042864 249193054708 282666748624 364205233804 498386109416 728410467608 996772218832 1183667009863 1456820935216 2367334019726 4734668039452 9469336078904 18938672157808
• Sum of all divisors σ(n): 42982556617392
• Sum of proper divisors (its aliquot sum) s(n): 24043884459584
• 18938672157808 is an abundant number, because the sum of its proper divisors (24043884459584) is greater than itself. Its abundance is 5105212301776

Bases of 18938672157808

• Binary: 100010011100110000000110100111001010001110000₂
• Hexadecimal: 0x113980D39470
• Base-36: 6POB0F59S

Squares and roots of 18938672157808

• 18938672157808 squared (18938672157808²) is 358673303100931926855364864
• 18938672157808 cubed (18938672157808³) is 6792796099186649272793612112812026458112
• The square root of 18938672157808 is 4351858.4717115973
• The cube root of 18938672157808 is 26655.2754864811

Scales and comparisons

• 18,938,672,157,808 seconds is equal to 602,191 years, 10 weeks, 10 hours, 3 minutes, 28 seconds.
• To count from 1 to 18,938,672,157,808 would take you about one million, five hundred five thousand, four hundred seventy-seven 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 18938672157808 cubic inches would be around 2221.3 feet tall.

Recreational maths with 18938672157808

• 18938672157808 backwards is 80875127683981
• The number of decimal digits it has is: 14
• The sum of 18938672157808's digits is 73
• More coming soon!