18218029872507840

Names of 18218029872507840

• Cardinal: 18218029872507840 can be written as Eighteen quadrillion, two hundred eighteen trillion, twenty-nine billion, eight hundred seventy-two million, five hundred seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.821802987250784 × 10¹⁶

Factors of 18218029872507840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 21750

Divisors of 18218029872507840

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 67 72 80 90 96 108 120 134 135 144 160 180 192 201 216 240 268 270 288 320 335 360 402 432 480 536 540 576 603 670 720 804 864 960 1005 1072 1080 1206 1340 1440 1608 1728 1809 2010 2144 2160 2412 2680 2880 3015 3216 3618 4020 4288 4320 4489 4824 5360 6030 6432 7236 8040 8640 8978 9045 9648 10720 12060 12864 13467 14472 16080 17956 18090 19296 21440 21673 22445 24120 26934 28944 32160 35912 36180 38592 40401 43346 44890 48240 53868 57888 64320 65019 67335 71824 72360 80802 86692 89780 96480 107736 108365 115776 121203 130038 134670 143648 144720 161604 173384 179560 192960 195057 202005 215472 216730 242406 260076 269340 287296 289440 323208 325095 346768 359120 390114 404010 430944 433460 484812 520152 538680 578880 585171 606015 646416 650190 693536 718240 780228 808020 861888 866920 969624 975285 1040304 1077360 1170342 1212030 1292832 1300380 1387072 1436480 1452091 1560456 1616040 1733840 1939248 1950570 2080608 2154720 2340684 2424060 2585664 2600760 2904182 2925855 3120912 3232080 3467680 3878496 3901140 4161216 4309440 4356273 4681368 4848120 5201520 5808364 5851710 6241824 6464160 6935360 7260455 7756992 7802280 8712546 9362736 9696240 10403040 11616728 11703420 12483648 12928320 13068819 14520910 15604560 17425092 18725472 19392480 20806080 21781365 23233456 23406840 26137638 29041820 31209120 34850184 37450944 38784960 39206457 43562730 46466912 46813680 52275276 58083640 62418240 65344095 69700368 78412914 87125460 92933824 93627360 97290097 104550552 116167280 130688190 139400736 156825828 174250920 187254720 194580194 196032285 209101104 232334560 261376380 278801472 291870291 313651656 348501840 389160388 392064570 418202208 464669120 469718929 486450485 522752760 583740582 627303312 697003680 778320776 784129140 836404416 875610873 939437858 972900970 1045505520 1167481164 1254606624 1394007360 1409156787 1459351455 1556641552 1568258280 1751221746 1878875716 1945801940 2091011040 2334962328 2348594645 2509213248 2626832619 2818313574 2918702910 3113283104 3136516560 3502443492 3757751432 3891603880 4182022080 4227470361 4378054365 4669924656 4697189290 5253665238 5636627148 5837405820 6226566208 6273033120 7004886984 7045783935 7515502864 7783207760 8454940722 8756108730 9339849312 9394378580 10507330476 11273254296 11674811640 12546066240 12682411083 13134163095 14009773968 14091567870 15031005728 15566415520 16909881444 17512217460 18679698624 18788757160 21014660952 21137351805 22546508592 23349623280 25364822166 26268326190 28019547936 28183135740 30062011456 31132831040 31471168243 33819762888 35024434920 37577514320 42029321904 42274703610 45093017184 46699246560 50729644332 52536652380 56039095872 56366271480 62942336486 63412055415 67639525776 70048869840 75155028640 84058643808 84549407220 90186034368 93398493120 94413504729 101459288664 105073304760 112732542960 125884672972 126824110830 135279051552 140097739680 150310057280 157355841215 168117287616 169098814440 188827009458 202918577328 210146609520 225465085920 251769345944 253648221660 270558103104 280195479360 283240514187 314711682430 338197628880 377654018916 405837154656 420293219040 450930171840 472067523645 503538691888 507296443320 566481028374 629423364860 676395257760 755308037832 811674309312 840586438080 849721542561 944135047290 1007077383776 1014592886640 1132962056748 1258846729720 1352790515520 1416202570935 1510616075664 1699443085122 1888270094580 2014154767552 2029185773280 2108568272281 2265924113496 2517693459440 2832405141870 3021232151328 3398886170244 3776540189160 4058371546560 4217136544562 4248607712805 4531848226992 5035386918880 5664810283740 6042464302656 6325704816843 6797772340488 7553080378320 8434273089124 8497215425610 9063696453984 10070773837760 10542841361405 11329620567480 12651409633686 13595544680976 15106160756640 16868546178248 16994430851220 18127392907968 18977114450529 21085682722810 22659241134960 25302819267372 27191089361952 30212321513280 31628524084215 33737092356496 33988861702440 37954228901058 42171365445620 45318482269920 50605638534744 54382178723904 56931343351587 63257048168430 67474184712992 67977723404880 75908457802116 84342730891240 90636964539840 94885572252645 101211277069488 113862686703174 126514096336860 134948369425984 135955446809760 151816915604232 168685461782480 189771144505290 202422554138976 227725373406348 253028192673720 271910893619520 284656716757935 303633831208464 337370923564960 379542289010580 404845108277952 455450746812696 506056385347440 569313433515870 607267662416928 674741847129920 759084578021160 910901493625392 1012112770694880 1138626867031740 1214535324833856 1518169156042320 1821802987250784 2024225541389760 2277253734063480 3036338312084640 3643605974501568 4554507468126960 6072676624169280 9109014936253920 18218029872507840
• Sum of all divisors σ(n): 65245729641508080
• Sum of proper divisors (its aliquot sum) s(n): 47027699769000240
• 18218029872507840 is an abundant number, because the sum of its proper divisors (47027699769000240) is greater than itself. Its abundance is 28809669896492400

Bases of 18218029872507840

• Binary: 1000000101110010011001110011111000011101110101111000000₂
• Hexadecimal: 0x40B9339F0EEBC0
• Base-36: 4ZDR3DUHYO0

Squares and roots of 18218029872507840

• 18218029872507840 squared (18218029872507840²) is 331896612435588024964650861465600
• 18218029872507840 cubed (18218029872507840³) is 6046502399935699690350780160828882793889890304000
• The square root of 18218029872507840 is 134974182.2442641807
• The cube root of 18218029872507840 is 263128.0435582077

Scales and comparisons

• 18,218,029,872,507,840 seconds is equal to 579,276,997 years, 45 weeks, 5 days, 2 hours, 24 minutes.
• To count from 1 to 18,218,029,872,507,840 would take you about one billion, seven hundred thirty-seven million, eight hundred thirty thousand, nine hundred ninety-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 18218029872507840 cubic inches would be around 21927.3 feet tall.

Recreational maths with 18218029872507840

• 18218029872507840 backwards is 04870527892081281
• 18218029872507840 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18218029872507840's digits is 72
• More coming soon!