18147861515785380

Names of 18147861515785380

• Cardinal: 18147861515785380 can be written as Eighteen quadrillion, one hundred forty-seven trillion, eight hundred sixty-one billion, five hundred fifteen million, seven hundred eighty-five thousand, three hundred eighty.

Scientific notation

• Scientific notation: 1.814786151578538 × 10¹⁶

Factors of 18147861515785380

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 67009

Divisors of 18147861515785380

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 23 30 31 46 60 62 69 92 93 115 124 138 155 186 230 276 310 345 372 383 460 465 620 690 713 766 930 1149 1380 1426 1532 1860 1915 2139 2298 2852 3565 3830 4278 4596 5745 7130 7660 8556 8809 10695 11490 11873 14260 17618 21390 22980 23746 26427 33149 33413 35236 35619 42780 44045 47492 52854 59365 66298 66826 71238 88090 99447 100239 105708 118730 132135 132596 133652 142476 165745 167065 176180 178095 198894 200478 237460 264270 273079 331490 334130 356190 397788 400956 497235 501195 528540 546158 662980 668260 712380 762427 768499 819237 994470 1002390 1027619 1035803 1092316 1365395 1524854 1536998 1638474 1988940 2004780 2055238 2071606 2287281 2305497 2730790 3049708 3073996 3082857 3107409 3276948 3812135 3842495 4096185 4110476 4143212 4574562 4610994 5138095 5179015 5461580 6165714 6214818 7624270 7684990 8192370 9149124 9221988 10276190 10358030 11436405 11527485 12331428 12429636 12696067 12797179 15248540 15369980 15414285 15537045 16384740 20552380 20716060 22872810 23054970 23635237 23823469 25392134 25594358 30828570 31074090 38088201 38391537 45745620 46109940 47270474 47646938 50784268 51188716 61657140 62148180 63480335 63985895 70905711 71470407 76176402 76783074 94540948 95293876 118176185 119117345 126960670 127971790 141811422 142940814 152352804 153566148 190441005 191957685 236352370 238234690 253921340 255943580 283622844 285881628 292009541 294335117 354528555 357352035 380882010 383915370 393578077 396712549 472704740 476469380 584019082 588670234 709057110 714704070 761764020 767830740 787156154 793425098 876028623 883005351 1107607537 1168038164 1177340468 1180734231 1190137647 1418114220 1429408140 1460047705 1471675585 1574312308 1586850196 1752057246 1766010702 1967890385 1983562745 2215215074 2361468462 2380275294 2920095410 2943351170 3322822611 3504114492 3532021404 3935780770 3967125490 4380143115 4415026755 4430430148 4722936924 4760550588 5538037685 5840190820 5886702340 5903671155 5950688235 6645645222 7871561540 7934250980 8760286230 8830053510 9052295771 9124388627 11076075370 11807342310 11901376470 13291290444 16614113055 17520572460 17660107020 18104591542 18248777254 22152150740 23614684620 23802752940 25474973351 27156887313 27373165881 33228226110 34335833647 36209183084 36497554508 45261478855 45621943135 50949946702 54313774626 54746331762 66456452220 68671667294 76424920053 90522957710 91243886270 101899893404 103007500941 108627549252 109492663524 127374866755 135784436565 136865829405 137343334588 152849840106 171679168235 181045915420 182487772540 206015001882 254749733510 271568873130 273731658810 305699680212 343358336470 382124600265 412030003764 424213686671 509499467020 515037504705 543137746260 547463317620 686716672940 764249200530 789724173881 848427373342 1030075009410 1272641060013 1528498401060 1579448347762 1696854746684 2060150018820 2121068433355 2369172521643 2545282120026 3158896695524 3948620869405 4242136866710 4738345043286 5090564240052 6363205300065 7897241738810 8484273733420 9476690086572 9756914793433 11845862608215 12726410600130 13150624286801 15794483477620 19513829586866 23691725216430 25452821200260 26301248573602 29270744380299 39027659173732 39451872860403 47383450432860 48784573967165 52602497147204 58541488760598 65753121434005 78903745720806 97569147934330 117082977521196 131506242868010 146353721901495 157807491441612 195138295868660 197259364302015 263012485736020 292707443802990 302464358596423 394518728604030 585414887605980 604928717192846 789037457208060 907393075789269 1209857434385692 1512321792982115 1814786151578538 3024643585964230 3629572303157076 4536965378946345 6049287171928460 9073930757892690 18147861515785380
• Sum of all divisors σ(n): 54879952542105600
• Sum of proper divisors (its aliquot sum) s(n): 36732091026320220
• 18147861515785380 is an abundant number, because the sum of its proper divisors (36732091026320220) is greater than itself. Its abundance is 18584229510534840

Bases of 18147861515785380

• Binary: 1000000011110010110001001000111000101001101010010100100₂
• Hexadecimal: 0x4079624714D4A4
• Base-36: 4YOVOHILL7O

Squares and roots of 18147861515785380

• 18147861515785380 squared (18147861515785380²) is 329344877596124030178918221744400
• 18147861515785380 cubed (18147861515785380³) is 5976905229547745880417132451549351719759616872000
• The square root of 18147861515785380 is 134713998.9599647361
• The cube root of 18147861515785380 is 262789.7885858341

Scales and comparisons

• 18,147,861,515,785,380 seconds is equal to 577,045,861 years, 9 weeks, 2 days, 17 hours, 43 minutes.
• To count from 1 to 18,147,861,515,785,380 would take you about one billion, seven hundred thirty-one million, one hundred thirty-seven thousand, five hundred eighty-three 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 18147861515785380 cubic inches would be around 21899.1 feet tall.

Recreational maths with 18147861515785380

• 18147861515785380 backwards is 08358751516874181
• The number of decimal digits it has is: 17
• The sum of 18147861515785380's digits is 78
• More coming soon!