18335393997921

Names of 18335393997921

• Cardinal: 18335393997921 can be written as Eighteen trillion, three hundred thirty-five billion, three hundred ninety-three million, nine hundred ninety-seven thousand, nine hundred twenty-one.

Scientific notation

• Scientific notation: 1.8335393997921 × 10¹³

Factors of 18335393997921

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 88

Divisors of 18335393997921

• Number of divisors d(n): 648
• Complete list of divisors:
  1 3 7 9 11 13 17 21 33 37 39 51 63 77 91 99 111 117 119 121 143 153 169 187 221 231 259 273 289 333 357 363 407 429 481 507 561 629 663 693 777 819 847 867 1001 1071 1089 1183 1221 1287 1309 1331 1443 1521 1547 1573 1683 1859 1887 1989 2023 2057 2331 2431 2541 2601 2849 2873 3003 3179 3367 3549 3663 3757 3927 3993 4329 4403 4477 4641 4719 5291 5577 5661 6069 6171 6253 6919 7293 7623 8177 8547 8619 9009 9317 9537 10101 10647 10693 11011 11271 11781 11979 13013 13209 13431 13923 14157 14399 14641 15873 16731 17017 17303 18207 18513 18759 20111 20449 20757 21879 22253 22627 24531 25641 25857 26299 26741 27951 28611 30303 31339 31603 32079 33033 33813 34969 37037 39039 39627 40293 41327 43197 43771 43923 47619 48433 48841 49247 51051 51909 56277 57239 58201 60333 61347 62271 66759 67881 68783 73593 74851 76109 78897 80223 83853 89947 94017 94809 96237 99099 102487 104907 106301 111111 117117 117623 121121 123981 129591 131313 131769 139009 143143 145299 146523 147741 153153 155727 158389 161051 171717 174603 180999 184041 187187 190333 200277 203643 206349 221221 224553 224939 228327 236691 240669 244783 248897 269841 282051 284427 289289 294151 307461 314721 318903 333333 341887 344729 347633 352869 363363 371943 384659 393939 407407 417027 429429 435897 439569 443223 454597 475167 481481 483153 515151 523809 532763 537251 541717 561561 570999 619047 629629 640211 663663 673659 674817 684981 734349 744107 746691 756613 809523 823361 837199 867867 882453 922383 956709 973063 989417 1025661 1034187 1042899 1058607 1090089 1127357 1153977 1169311 1222221 1251081 1288287 1293853 1332331 1363791 1425501 1444443 1449459 1529099 1574573 1598289 1611753 1625151 1684683 1712997 1742279 1807117 1888887 1920633 1990989 2024451 2059057 2093663 2203047 2232321 2240073 2269839 2433431 2470083 2474329 2511597 2603601 2647359 2692613 2737867 2919189 2968251 3076983 3102561 3128697 3182179 3235661 3382071 3461931 3507933 3666663 3760757 3792019 3823963 3881559 3996993 4091373 4231249 4333329 4481477 4587297 4723719 4794867 4835259 4875453 5000567 5226837 5296291 5421351 5666661 5761899 5860393 5909761 5958887 6177171 6280989 6696963 6809517 6925919 7042321 7300293 7410249 7422987 7534791 8077839 8185177 8213601 8322743 8757567 8904753 9056971 9209189 9546537 9706983 10146213 10523799 10703693 10883587 11282271 11376057 11471889 11644677 11990979 12649819 12693747 12862421 13444431 13761891 14171157 14232383 14655641 15001701 15680511 15888873 16264053 16820089 17320303 17581179 17729283 17876661 18531513 18842967 19165069 19878287 20777757 21126963 21900879 22268961 22649627 24233517 24555531 24640803 24968229 26767741 27170913 27217619 27627567 28639611 29120949 29618743 32111079 32650761 33846813 34128171 34415667 35003969 35592271 37949457 38081241 38587263 40333293 41368327 41712209 42063593 42697149 43966923 45005103 46543739 47666619 49296247 50460267 51960909 52743537 53187849 53629983 55006237 57495207 58259201 59634861 62333271 63380889 64464323 65007371 67948881 73666593 74904687 76185109 77465531 80303223 81512739 81652857 82882701 88856229 90036947 91550173 96333237 97952283 99626681 101301079 105011907 106776813 113848371 115761789 117740623 119719457 124104981 125136627 126190779 128091447 131900769 139148009 139631217 141486631 147888741 151380801 155882727 156556213 165018711 172485621 174777603 178904583 185020979 190523333 193392969 195022113 203846643 218661157 228555327 232396593 240909669 244958571 249145897 266568687 270110841 274650519 294445151 298880043 303903237 315035721 320330439 325806173 353221869 359158371 372314943 375409881 378572337 385043659 417444027 418893651 424459893 443666223 455051597 462699523 469668639 495056133 524332809 542258717 555062937 571569999 580178907 585066339 605068607 640851211 655983471 685665981 697189779 709107553 715081081 747437691 810332523 823951557 838036199 883335453 896640129 911709711 977418519 990406417 1007051903 1059665607 1077475113 1095893491 1155130977 1252332081 1273379679 1295146853 1316914027 1365154791 1388098569 1409005917 1530628099 1556352941 1626776151 1665188811 1714709997 1722118343 1815205821 1922553633 1967950413 2035230769 2127322659 2145243243 2242313073 2405272727 2514108597 2650006359 2932255557 2971219251 3021155709 3238896661 3287680473 3465392931 3885440559 3950742081 4095464373 4164295707 4235480249 4591884297 4669058823 4880328453 5005567567 5166355029 5445617463 5767660899 6105692307 6381967977 6435729729 7049363321 7215818181 7542325791 7865891891 8913657753 9063467127 9218398189 9716689983 9863041419 10894470587 11656321677 11852226243 12054828401 12706440747 13775652891 14007176469 14246615383 15016702701 15499065087 16836909089 17119882351 18317076921 21148089963 21647454543 22387538459 23597675673 26457999997 27655194567 29150069949 32683411761 36164485203 38119322241 42739846149 45050108103 50510727267 51359647053 55061243237 63444269889 67162615377 70793027019 79373999991 82965583701 98050235283 108493455609 119839176457 128219538447 151532181801 154078941159 156712769213 165183729711 185205999979 201487846131 238121999973 291037999967 359517529371 470138307639 495551189133 555617999937 873113999901 1078552588113 1410414922917 1666853999811 2037265999769 2619341999703 6111797999307 18335393997921
• Sum of all divisors σ(n): 39333470484672
• Sum of proper divisors (its aliquot sum) s(n): 20998076486751
• 18335393997921 is an abundant number, because the sum of its proper divisors (20998076486751) is greater than itself. Its abundance is 2662682488830

Bases of 18335393997921

• Binary: 100001010110100001010101001010110010001100001₂
• Hexadecimal: 0x10AD0AA56461
• Base-36: 6HZ5W6HY9

Squares and roots of 18335393997921

• 18335393997921 squared (18335393997921²) is 336186673058997431752322241
• 18335393997921 cubed (18335393997921³) is 6164115107386971062877283043084876060961
• The square root of 18335393997921 is 4281984.8199078193
• The cube root of 18335393997921 is 26369.1875354219

Scales and comparisons

• 18,335,393,997,921 seconds is equal to 583,008 years, 42 weeks, 2 days, 7 hours, 25 minutes, 21 seconds.
• To count from 1 to 18,335,393,997,921 would take you about one million, four hundred fifty-seven thousand, five hundred twenty-two 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 18335393997921 cubic inches would be around 2197.4 feet tall.

Recreational maths with 18335393997921

• 18335393997921 backwards is 12979939353381
• The number of decimal digits it has is: 14
• The sum of 18335393997921's digits is 72
• More coming soon!