18918995275208

Names of 18918995275208

• Cardinal: 18918995275208 can be written as Eighteen trillion, nine hundred eighteen billion, nine hundred ninety-five million, two hundred seventy-five thousand, two hundred eight.

Scientific notation

• Scientific notation: 1.8918995275208 × 10¹³

Factors of 18918995275208

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 120

Divisors of 18918995275208

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 7 8 14 19 28 31 38 49 56 61 62 76 98 122 124 133 152 196 217 244 248 266 361 392 427 434 488 532 589 722 854 868 931 1064 1159 1178 1444 1519 1708 1736 1862 1891 2318 2356 2527 2888 2989 3038 3416 3721 3724 3782 4123 4636 4712 5054 5978 6076 6859 7442 7448 7564 8113 8246 9272 10108 11191 11956 12152 13237 13718 14884 15128 16226 16492 17689 20216 22021 22382 23912 26047 26474 27436 28861 29768 32452 32984 35378 35929 44042 44764 48013 52094 52948 54872 56791 57722 64904 70699 70756 71858 78337 88084 89528 92659 96026 104188 105896 113582 115351 115444 141398 141512 143716 154147 156674 176168 182329 185318 192052 208376 212629 226981 227164 230702 230888 251503 282796 287432 308294 313348 336091 364658 370636 384104 418399 425258 453962 454328 461404 494893 503006 548359 565592 616588 626696 672182 682651 729316 741272 807457 836798 850516 907924 922808 989786 1006012 1079029 1096718 1233176 1343281 1344364 1365302 1458632 1488403 1588867 1614914 1673596 1701032 1760521 1815848 1979572 2012024 2158058 2191669 2193436 2686562 2688728 2730604 2928793 2976806 3177734 3229828 3347192 3464251 3521042 3959144 4312639 4316116 4383338 4386872 4778557 5373124 5461208 5652199 5857586 5953612 6355468 6459656 6928502 7036411 7042084 8625278 8632232 8766676 9402967 9557114 10418821 10746248 11122069 11304398 11715172 11907224 12710936 12970369 13857004 14072822 14084168 15341683 17250556 17533352 18805934 19114228 20501551 20837642 22244138 22608796 23430344 25522339 25940738 27714008 28145644 30188473 30683366 33449899 34501112 37611868 38228456 41003102 41641711 41675284 44488276 45217592 49254877 51044678 51881476 56291288 60376946 61366732 65820769 66899798 75223736 81940141 82006204 83283422 83350568 88976552 90792583 98509754 102089356 103762952 107391781 120753892 122733464 131641538 133691809 133799596 163880282 164012408 166566844 178656373 181585166 197019508 204178712 211319311 214783562 241507784 263283076 267383618 267599192 291491977 327760564 333133688 344784139 357312746 363170332 394039016 422638622 429567124 526566152 534767236 573580987 582983954 635548081 655521128 689568278 714625492 726340664 791192509 845277244 859134248 935842663 1069534472 1147161974 1165967908 1250594611 1271096162 1379136556 1429250984 1556862679 1582385018 1690554488 1871685326 2040443839 2294323948 2331935816 2501189222 2540144371 2542192324 2758273112 3113725358 3164770036 3743370652 4015066909 4080887678 4588647896 5002378444 5080288742 5084384648 5538347563 6227450716 6329540072 6550898641 7486741304 8030133818 8161775356 10004756888 10160577484 10898038753 11076695126 12454901432 13101797282 16060267636 16323550712 17781010597 20321154968 21796077506 22153390252 26203594564 32120535272 35562021194 38768432941 43592155012 44306780504 48262743049 52407189128 71124042388 76286271271 77536865882 87184310024 96525486098 124467074179 142248084776 152572542542 155073731764 193050972196 248934148358 305145085084 310147463528 337839201343 386101944392 497868296716 610290170168 675678402686 995736593432 1351356805372 2364874409401 2702713610744 4729748818802 9459497637604 18918995275208
• Sum of all divisors σ(n): 45711210009600
• Sum of proper divisors (its aliquot sum) s(n): 26792214734392
• 18918995275208 is an abundant number, because the sum of its proper divisors (26792214734392) is greater than itself. Its abundance is 7873219459184

Bases of 18918995275208

• Binary: 100010011010011101011111111100010110111001000₂
• Hexadecimal: 0x1134EBFE2DC8
• Base-36: 6PF9LB9HK

Squares and roots of 18918995275208

• 18918995275208 squared (18918995275208²) is 357928382223342627659443264
• 18918995275208 cubed (18918995275208³) is 6771645372146262270897546687299741798912
• The square root of 18918995275208 is 4349597.1394150977
• The cube root of 18918995275208 is 26646.0408637543

Scales and comparisons

• 18,918,995,275,208 seconds is equal to 601,565 years, 27 weeks, 3 days, 17 hours, 20 minutes, 8 seconds.
• To count from 1 to 18,918,995,275,208 would take you about one million, five hundred three thousand, nine hundred thirteen 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 18918995275208 cubic inches would be around 2220.5 feet tall.

Recreational maths with 18918995275208

• 18918995275208 backwards is 80257259981981
• The number of decimal digits it has is: 14
• The sum of 18918995275208's digits is 74
• More coming soon!