18954398389472

Names of 18954398389472

• Cardinal: 18954398389472 can be written as Eighteen trillion, nine hundred fifty-four billion, three hundred ninety-eight million, three hundred eighty-nine thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.8954398389472 × 10¹³

Factors of 18954398389472

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 53

Divisors of 18954398389472

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 31 32 49 52 56 62 91 98 104 112 124 169 182 196 208 217 224 248 338 343 364 392 403 416 434 496 637 676 686 728 784 806 868 961 992 1183 1274 1352 1372 1456 1519 1568 1612 1736 1922 2366 2401 2548 2704 2744 2821 2912 3038 3224 3472 3844 4459 4732 4802 5096 5239 5408 5488 5642 6076 6448 6727 6944 7688 8281 8918 9464 9604 10192 10478 10633 10976 11284 12152 12493 12896 13454 15376 16562 16807 17836 18928 19208 19747 20384 20956 21266 22568 24304 24986 26908 29791 30752 31213 33124 33614 35672 36673 37856 38416 39494 41912 42532 45136 47089 48608 49972 53816 57967 59582 62426 66248 67228 71344 73346 74431 76832 78988 83824 85064 87451 90272 94178 99944 107632 115934 117649 119164 124852 132496 134456 138229 142688 146692 148862 157976 162409 167648 170128 174902 188356 199888 208537 215264 218491 231868 235298 238328 249704 256711 264992 268912 276458 293384 297724 315952 324818 329623 340256 349804 376712 387283 399776 405769 417074 436982 463736 470596 476656 499408 513422 521017 537824 552916 586768 595448 612157 631904 649636 659246 699608 753424 774566 811538 834148 873964 927472 941192 953312 967603 998816 1026844 1042034 1105832 1136863 1173536 1190896 1224314 1299272 1318492 1399216 1459759 1506848 1529437 1549132 1623076 1668296 1747928 1796977 1854944 1882384 1935206 2053688 2084068 2211664 2273726 2307361 2381792 2448628 2598544 2636984 2710981 2798432 2840383 2919518 3058874 3098264 3246152 3336592 3495856 3593954 3647119 3764768 3870412 4107376 4168136 4285099 4423328 4547452 4614722 4897256 5034679 5197088 5273968 5421962 5680766 5839036 6117748 6196528 6492304 6673184 6773221 6991712 7187908 7294238 7740824 7958041 8214752 8336272 8570198 9094904 9229444 9794512 10069358 10218313 10547936 10843924 11361532 11678072 12235496 12393056 12578839 12984608 13546442 14375816 14588476 15481648 15916082 16151527 16672544 17140396 18189808 18458888 18976867 19589024 19882681 20138716 20436626 21687848 22723064 23356144 24470992 25157678 27092884 28751632 29176952 29995693 30963296 31832164 32303054 34280792 35242753 36379616 36917776 37953734 39765362 40277432 40873252 43375696 45446128 46712288 47412547 48941984 50315356 54185768 55706287 57503264 58353904 59991386 63664328 64606108 68561584 70485506 71528191 73835552 75907468 79530724 80554864 81746504 86751392 88051873 90892256 94825094 100630712 108371536 111412574 113060689 116707808 119982772 127328656 129212216 132838069 137123168 140971012 143056382 151814936 159061448 161109728 163493008 176103746 189650188 201261424 209969851 216743072 222825148 226121378 239965544 246699271 254657312 258424432 265676138 281942024 286112764 303629872 318122896 326986016 352207492 379300376 389944009 402522848 419939702 445650296 452242756 479931088 493398542 500697337 516848864 531352276 563884048 572225528 607259744 616363111 636245792 704414984 758600752 779888018 839879404 891300592 904485512 929866483 959862176 986797084 1001394674 1062704552 1127768096 1144451056 1232726222 1408829968 1469788957 1517201504 1559776036 1679758808 1726894897 1782601184 1808971024 1859732966 1973594168 2002789348 2125409104 2288902112 2465452444 2729608063 2817659936 2939577914 3119552072 3359517616 3453789794 3504881359 3617942048 3719465932 3947188336 4005578696 4250818208 4930904888 5459216126 5879155828 6239104144 6509065381 6719035232 6907579588 7009762718 7438931864 7894376672 8011157392 9861809776 10918432252 11758311656 12088264279 12478208288 13018130762 13815159176 14019525436 14877863728 16022314784 19107256441 19723619552 21836864504 23516623312 24176528558 26036261524 27630318352 28039050872 29755727456 38214512882 43673729008 45563457667 47033246624 48353057116 52072523048 55260636704 56078101744 76429025764 84617849953 87347458016 91126915334 96706114232 104145046096 112156203488 152858051528 169235699906 182253830668 193412228464 208290092192 305716103056 338471399812 364507661336 386824456928 592324949671 611432206112 676942799624 729015322672 1184649899342 1353885599248 1458030645344 2369299798684 2707771198496 4738599597368 9477199194736 18954398389472
• Sum of all divisors σ(n): 48713708377152
• Sum of proper divisors (its aliquot sum) s(n): 29759309987680
• 18954398389472 is an abundant number, because the sum of its proper divisors (29759309987680) is greater than itself. Its abundance is 10804911598208

Bases of 18954398389472

• Binary: 100010011110100101010001011101101010011100000₂
• Hexadecimal: 0x113D2A2ED4E0
• Base-36: 6PVJ3EVA8

Squares and roots of 18954398389472

• 18954398389472 squared (18954398389472²) is 359269218306818747400438784
• 18954398389472 cubed (18954398389472³) is 6809731892861629644482693274115726082048
• The square root of 18954398389472 is 4353664.9376671147
• The cube root of 18954398389472 is 26662.6514182899

Scales and comparisons

• 18,954,398,389,472 seconds is equal to 602,691 years, 12 weeks, 2 days, 23 hours, 44 minutes, 32 seconds.
• To count from 1 to 18,954,398,389,472 would take you about one million, five hundred six thousand, seven hundred twenty-eight 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 18954398389472 cubic inches would be around 2221.9 feet tall.

Recreational maths with 18954398389472

• 18954398389472 backwards is 27498389345981
• The number of decimal digits it has is: 14
• The sum of 18954398389472's digits is 80
• More coming soon!