18181031589072

Names of 18181031589072

• Cardinal: 18181031589072 can be written as Eighteen trillion, one hundred eighty-one billion, thirty-one million, five hundred eighty-nine thousand and seventy-two.

Scientific notation

• Scientific notation: 1.8181031589072 × 10¹³

Factors of 18181031589072

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 949721

Divisors of 18181031589072

• Number of divisors d(n): 400
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 17 18 22 24 27 33 34 36 44 48 51 54 66 68 72 79 81 88 99 102 108 132 136 144 153 158 162 176 187 198 204 216 237 264 272 297 306 316 324 374 396 408 432 459 474 528 561 594 612 632 648 711 748 792 816 869 891 918 948 1122 1188 1224 1264 1296 1343 1377 1422 1496 1584 1683 1738 1782 1836 1896 2133 2244 2376 2448 2607 2686 2754 2844 2992 3366 3476 3564 3672 3792 4029 4266 4488 4752 5049 5214 5372 5508 5688 6399 6732 6952 7128 7344 7821 8058 8532 8976 10098 10428 10744 11016 11376 12087 12798 13464 13904 14256 14773 15147 15642 16116 17064 20196 20856 21488 22032 23463 24174 25596 26928 29546 30294 31284 32232 34128 36261 40392 41712 44319 46926 48348 51192 59092 60588 62568 64464 70389 72522 80784 88638 93852 96696 102384 108783 118184 121176 125136 132957 140778 145044 177276 187704 193392 217566 236368 242352 265914 281556 290088 354552 375408 398871 435132 531828 563112 580176 709104 797742 870264 949609 1063656 1126224 1196613 1595484 1740528 1899218 2127312 2393226 2848827 3190968 3798436 4786452 5697654 6381936 7596872 8546481 9572904 10445699 11395308 15193744 16143353 17092962 19145808 20891398 22790616 25639443 31337097 32286706 34185924 41782796 45581232 48430059 51278886 62674194 64573412 68371848 75019111 76918329 83565592 94011291 96860118 102557772 125348388 129146824 136743696 145290177 150038222 153836658 167131184 177576883 188022582 193720236 205115544 225057333 250696776 258293648 282033873 290580354 300076444 307673316 355153766 376045164 387440472 410231088 435870531 450114666 501393552 532730649 564067746 581160708 600152888 615346632 675171999 710307532 752090328 774880944 825210221 846101619 871741062 900229332 1065461298 1128135492 1162321416 1200305776 1230693264 1275324887 1307611593 1350343998 1420615064 1504180656 1598191947 1650420442 1692203238 1743482124 1800458664 2025515997 2130922596 2256270984 2324642832 2475630663 2550649774 2615223186 2700687996 2841230128 3196383894 3300840884 3384406476 3486964248 3600917328 3825974661 4051031994 4261845192 4512541968 4794575841 4951261326 5101299548 5230446372 5401375992 6076547991 6392767788 6601681768 6768812952 6973928496 7426891989 7651949322 8102063988 8523690384 9589151682 9902522652 10202599096 10460892744 10802751984 11477923983 12153095982 12785535576 13203363536 13537625904 14028573757 14383727523 14853783978 15303898644 16204127976 19178303364 19805045304 20405198192 20921785488 22280675967 22955847966 24306191964 25571071152 28057147514 28767455046 29707567956 30607797288 32408255952 34433771949 38356606728 39610090608 42085721271 44561351934 45911695932 48612383928 56114295028 57534910092 59415135912 61215594576 66842027901 68867543898 76713213456 84171442542 89122703868 91823391864 97224767856 103301315847 112228590056 115069820184 118830271824 126257163813 133684055802 137735087796 168342885084 178245407736 183646783728 206602631694 224457180112 230139640368 252514327626 267368111604 275470175592 336685770168 356490815472 378771491439 413205263388 505028655252 534736223208 550940351184 673371540336 757542982878 826410526776 1010057310504 1069472446416 1136314474317 1515085965756 1652821053552 2020114621008 2272628948634 3030171931512 4545257897268 6060343863024 9090515794536 18181031589072
• Sum of all divisors σ(n): 61551137260800
• Sum of proper divisors (its aliquot sum) s(n): 43370105671728
• 18181031589072 is an abundant number, because the sum of its proper divisors (43370105671728) is greater than itself. Its abundance is 25189074082656

Bases of 18181031589072

• Binary: 100001000100100011001111011011111010011010000₂
• Hexadecimal: 0x108919EDF4D0
• Base-36: 6G090SD00

Squares and roots of 18181031589072

• 18181031589072 squared (18181031589072²) is 330549909642833933469821184
• 18181031589072 cubed (18181031589072³) is 6009738348981259045390227367695208501248
• The square root of 18181031589072 is 4263922.0899392615
• The cube root of 18181031589072 is 26294.9797359501

Scales and comparisons

• 18,181,031,589,072 seconds is equal to 578,100 years, 29 weeks, 3 days, 8 hours, 31 minutes, 12 seconds.
• To count from 1 to 18,181,031,589,072 would take you about one million, four hundred forty-five thousand, two hundred fifty-one 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 18181031589072 cubic inches would be around 2191.2 feet tall.

Recreational maths with 18181031589072

• 18181031589072 backwards is 27098513018181
• 18181031589072 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18181031589072's digits is 54
• More coming soon!