18136933660721421

Names of 18136933660721421

• Cardinal: 18136933660721421 can be written as Eighteen quadrillion, one hundred thirty-six trillion, nine hundred thirty-three billion, six hundred sixty million, seven hundred twenty-one thousand, four hundred twenty-one.

Scientific notation

• Scientific notation: 1.8136933660721421 × 10¹⁶

Factors of 18136933660721421

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 349

Divisors of 18136933660721421

• Number of divisors d(n): 432
• Complete list of divisors:
  1 3 7 9 13 21 27 39 49 63 91 117 127 147 169 189 199 273 351 381 441 507 597 637 819 889 1143 1183 1323 1393 1521 1651 1791 1911 2457 2587 2667 3429 3549 4179 4563 4953 5373 5733 6223 7761 8001 8281 9751 10647 11557 12537 14859 16129 17199 18109 18669 21463 23283 24003 24843 25273 29253 31941 33631 34671 37611 39601 44577 48387 54327 56007 64389 69849 74529 75819 80899 87759 100893 104013 112903 118803 126763 145161 150241 162981 168021 176911 193167 209677 223587 227457 235417 242697 263277 277207 302679 312039 328549 338709 356409 380289 435483 450723 488943 514813 530733 579501 629031 682371 706251 728091 790321 831621 908037 985647 1016127 1051687 1069227 1140867 1238377 1352169 1467739 1544439 1592199 1647919 1887093 1940449 2048383 2118753 2184273 2299843 2370963 2494863 2725801 2956941 3048381 3155061 3209671 3422601 3603691 3715131 4056507 4271137 4403217 4633317 4776597 4943757 5029327 5661279 5821347 6145149 6356259 6692569 6899529 7112889 7484589 8177403 8870823 9465183 9629013 10274173 10811073 11145393 12813411 13209651 13899951 14338681 14831271 15087981 16098901 17464041 18435447 19080607 20077707 20698587 21338667 22467697 24532209 25225837 26628979 28395549 28887039 29897959 30822519 32433219 33436179 35205289 38440233 39628953 41725723 43016043 44493813 45263943 46847983 48296703 52392123 55306341 57241821 60233121 62095761 65381251 67403091 73596627 75677511 79886937 86661117 89693877 92467557 97299657 100370767 105615867 115320699 125177169 129048129 133564249 135791829 140543949 144890109 157273879 171725463 180699363 186402853 196143753 202209273 209285713 227032533 239660811 246437023 269081631 277402671 292080061 301112301 316847601 327935881 346176727 375531507 387144387 400692747 407628217 421631847 434670327 457668757 471821637 515176389 542434399 559208559 588431259 606627819 627857139 638724529 681097599 718982433 739311069 807244893 849956263 876240183 903336903 950542803 983807643 1038530181 1126594521 1202078241 1222884651 1264895541 1304819971 1373006271 1415464911 1627303197 1677625677 1765293777 1883571417 1916173587 2044560427 2217933207 2423237089 2549868789 2628720549 2710010709 2853397519 2951422929 3115590543 3203681299 3606234723 3668653953 3797040793 3914459913 4119018813 4246394733 4471071703 4881909591 5032877031 5299166821 5650714251 5748520761 5949693841 6133681281 6653799621 7269711267 7649606367 7886161647 8303418877 8560192557 8854268787 9346771629 9611043897 11005961859 11391122379 11743379739 12357056439 13413215109 14645728773 15897500463 16962659623 17245562283 17849081523 18401043843 19973782633 21809133801 22948819101 24910256631 25680577671 26579285551 28833131691 31297501921 34173367137 35230139217 37094167747 40239645327 41647856887 47692501389 50887978869 53547244569 55203131529 58123932139 59921347899 65427401403 68889168673 74730769893 77041733013 79737856653 81118015183 86499395073 93892505763 102520101411 107944445401 111282503241 120718935981 124943570661 143077504167 152663936607 160641733707 174371796417 179764043697 206667506019 224192309679 239213569959 243354045549 259659174229 281677517289 323833336203 333847509723 374830711983 406867524973 457991809821 482224180711 523115389251 539292131091 567826106281 620002518057 717640709877 730062136647 755611117807 778977522687 845032551867 971500008609 1001542529169 1054534197379 1124492135949 1220602574919 1446672542133 1569346167753 1703478318843 1860007554171 2190186409941 2266833353421 2336932568061 2914500025827 3163602592137 3375569264977 3661807724757 3974782743967 4340017626399 5110434956529 5289277824649 6800500060263 7010797704183 7381739381653 9490807776411 10126707794931 10985423174271 11924348231901 13020052879197 13708944565927 15331304869587 15867833473947 20401500180789 22145218144959 28472423329233 30380123384793 35773044695703 41126833697781 47603500421841 51672175671571 66435654434877 91140370154379 95962611961489 107319134087109 123380501093343 142810501265523 155016527014713 199306963304631 287887835884467 370141503280029 465049581044139 671738283730423 863663507653401 1395148743132417 2015214851191269 2590990522960203 6045644553573807 18136933660721421
• Sum of all divisors σ(n): 34286587115673600
• Sum of proper divisors (its aliquot sum) s(n): 16149653454952179
• 18136933660721421 is a deficient number, because the sum of its proper divisors (16149653454952179) is less than itself. Its deficiency is 1987280205769242

Bases of 18136933660721421

• Binary: 1000000011011110111000111110000001010011000000100001101₂
• Hexadecimal: 0x406F71F029810D
• Base-36: 4YL08ARUD59

Squares and roots of 18136933660721421

• 18136933660721421 squared (18136933660721421²) is 328948362613409725236382168259241
• 18136933660721421 cubed (18136933660721421³) is 5966114630522346669716019861514567759159809901461
• The square root of 18136933660721421 is 134673433.3887772425
• The cube root of 18136933660721421 is 262737.0311241627

Scales and comparisons

• 18,136,933,660,721,421 seconds is equal to 576,698,389 years, 9 weeks, 6 days, 18 hours, 10 minutes, 21 seconds.
• To count from 1 to 18,136,933,660,721,421 would take you about one billion, seven hundred thirty million, ninety-five thousand, one hundred sixty-seven 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 18136933660721421 cubic inches would be around 21894.8 feet tall.

Recreational maths with 18136933660721421

• 18136933660721421 backwards is 12412706633963181
• 18136933660721421 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18136933660721421's digits is 63
• More coming soon!