18139393420720

Names of 18139393420720

• Cardinal: 18139393420720 can be written as Eighteen trillion, one hundred thirty-nine billion, three hundred ninety-three million, four hundred twenty thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.813939342072 × 10¹³

Factors of 18139393420720

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1784

Divisors of 18139393420720

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 19 20 22 26 38 40 44 52 55 65 76 80 88 95 104 110 121 130 143 152 169 176 190 208 209 220 242 247 260 286 304 338 380 418 440 457 484 494 520 572 605 676 715 760 836 845 880 914 968 988 1040 1045 1144 1210 1235 1277 1352 1430 1520 1573 1672 1690 1828 1859 1936 1976 2090 2285 2288 2299 2420 2470 2554 2704 2717 2860 3146 3211 3344 3380 3656 3718 3952 4180 4570 4598 4840 4940 5027 5108 5434 5720 5941 6292 6385 6422 6760 7312 7436 7865 8360 8683 9140 9196 9295 9680 9880 10054 10216 10868 11440 11495 11882 12584 12770 12844 13520 13585 14047 14872 15730 16055 16601 16720 17366 18280 18392 18590 19760 20108 20432 20449 21736 22990 23764 24263 25135 25168 25540 25688 27170 28094 29705 29744 29887 31460 32110 33202 34732 35321 36560 36784 37180 40216 40898 43415 43472 45980 47528 48526 50270 51080 51376 54340 55297 56188 59410 59774 62920 64220 65351 66404 69464 70235 70642 74360 77233 80432 81796 83005 86830 91960 95056 95513 97052 100540 102160 102245 108680 110594 112376 112879 118820 119548 121315 125840 128440 130702 132808 138928 140470 141284 148720 149435 154466 154517 163592 166010 173660 176605 182611 183920 191026 194104 201080 204490 215813 217360 221188 224752 225758 237640 239096 242630 256880 261404 265616 266893 276485 280940 282568 298870 308932 309034 315419 326755 327184 332020 347320 353210 365222 382052 386165 388208 388531 402160 408980 431626 442376 451516 475280 477565 478192 485260 522808 533786 552970 561880 564395 565136 583589 597740 617864 618068 630838 653510 664040 694640 706420 718861 730444 764104 772330 772585 777062 817960 849563 863252 884752 903032 913055 955130 970520 1045616 1050643 1067572 1079065 1105940 1123760 1128790 1167178 1195480 1235728 1236136 1241669 1261676 1307020 1328080 1334465 1412840 1437722 1460888 1467427 1528208 1544660 1545170 1554124 1577095 1635920 1699126 1726504 1806064 1826110 1910260 1941040 1942655 2008721 2101286 2135144 2158130 2211880 2257580 2334356 2373943 2390960 2472272 2483338 2523352 2614040 2668930 2825680 2875444 2917945 2921776 2934854 2935823 3089320 3090340 3108248 3154190 3398252 3453008 3469609 3594305 3652220 3820520 3885310 4017442 4100447 4202572 4247815 4270288 4316260 4423760 4515160 4668712 4747886 4966676 5046704 5228080 5253215 5337860 5750888 5835890 5869708 5871646 6178640 6180680 6208345 6216496 6308380 6419479 6796504 6939218 7188610 7304440 7337135 7586657 7641040 7770620 8034884 8200894 8405144 8495630 8632520 9030320 9337424 9345193 9495772 9933352 10043605 10506430 10675720 11088191 11501776 11671780 11739416 11743292 11869715 12361360 12416690 12616760 12838958 13593008 13658359 13878436 14377220 14608880 14674270 14679115 15173314 15541240 16069768 16141697 16401788 16810288 16991260 17265040 17348045 18690386 18991544 19866704 20087210 20502235 21012860 21351440 22176382 23343560 23478832 23486584 23739430 24833380 25233520 25677916 26113373 27316718 27756872 28754440 29348540 29358230 30346628 31082480 32097395 32139536 32283394 32803576 33982520 34696090 37380772 37933285 37983088 38165699 40174420 41004470 42025720 44352764 45104917 46687120 46725965 46973168 47478860 49666760 51355832 52226746 54633436 55440955 55513744 57508880 58697080 58716460 60693256 64194790 64566788 65607152 67965040 68291795 69392180 70614269 74761544 75866570 76331398 80348840 80708485 82008940 83453227 84051440 88705528 90209834 93451930 94957720 98626541 99333520 102711664 104453492 109266872 110881910 117394160 117432920 121386512 121970101 128389580 129133576 130566865 136583590 138784360 141228538 144146483 149523088 151733140 152662796 160697680 161416970 164017880 166906454 177411056 177558667 180419668 186903860 189915440 190828495 197253082 208906984 218533744 221763820 225524585 234865840 243940202 256779160 258267152 261133730 273167180 277568720 282457076 288292966 303466280 305325592 322833940 328035760 333812908 353071345 355117334 360839336 373807720 381656990 394506164 417266135 417813968 443527640 451049170 487880404 493132705 496154087 513558320 522267460 546334360 564914152 576585932 606932560 609850505 610651184 645667880 667625816 706142690 710234668 720732415 721678672 747615440 763313980 789012328 834532270 887055280 887793335 902098340 917985497 975760808 986265410 992308174 1044534920 1084891951 1092668720 1129828304 1153171864 1219701010 1291335760 1335251632 1341671111 1412285380 1420469336 1441464830 1526627960 1578024656 1585611313 1669064540 1775586670 1804196680 1835970994 1873904279 1951521616 1972530820 1984616348 2089069840 2169783902 2306343728 2439402020 2480770435 2683342222 2824570760 2840938672 2882929660 3053255920 3171222626 3338129080 3551173340 3608393360 3671941988 3747808558 3945061640 3969232696 4339567804 4589927485 4878804040 4961540870 5366684444 5424459755 5649141520 5765859320 6342445252 6676258160 6708355555 7102346680 7343883976 7495617116 7890123280 7928056565 7938465392 8679135608 9179854970 9369521395 9757608080 9923081740 10733368888 10848919510 11531718640 11933811461 12684890504 13416711110 14204693360 14687767952 14991234232 15856113130 17358271216 17441724443 18359709940 18739042790 19846163480 20612947069 21466737776 21697839020 23867622922 25369781008 26833422220 29982468464 31712226260 34883448886 36719419880 37478085580 39692326960 41225894138 43395678040 47735245844 53666844440 59669057305 63424452520 69766897772 73438839760 74956171160 82451788276 86791356080 87208622215 95470491688 103064735345 107333688880 119338114610 126848905040 139533795544 149912342320 164903576552 174417244430 190940983376 206129470690 226742417759 238676229220 279067591088 329807153104 348834488860 412258941380 453484835518 477352458440 697668977720 824517882760 906969671036 954704916880 1133712088795 1395337955440 1649035765520 1813939342072 2267424177590 3627878684144 4534848355180 9069696710360 18139393420720
• Sum of all divisors σ(n): 52995867109920
• Sum of proper divisors (its aliquot sum) s(n): 34856473689200
• 18139393420720 is an abundant number, because the sum of its proper divisors (34856473689200) is greater than itself. Its abundance is 16717080268480

Bases of 18139393420720

• Binary: 100000111111101101000000110011110110110110000₂
• Hexadecimal: 0x107F6819EDB0
• Base-36: 6FH4EHWOG

Squares and roots of 18139393420720

• 18139393420720 squared (18139393420720²) is 329037593671660022925318400
• 18139393420720 cubed (18139393420720³) is 5968542361817250527772164952871157248000
• The square root of 18139393420720 is 4259036.6775504529
• The cube root of 18139393420720 is 26274.8908192939

Scales and comparisons

• 18,139,393,420,720 seconds is equal to 576,776 years, 31 weeks, 2 days, 2 hours, 38 minutes, 40 seconds.
• To count from 1 to 18,139,393,420,720 would take you about one million, four hundred forty-one thousand, nine hundred forty-one 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 18139393420720 cubic inches would be around 2189.6 feet tall.

Recreational maths with 18139393420720

• 18139393420720 backwards is 02702439393181
• 18139393420720 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18139393420720's digits is 52
• More coming soon!