18993268437840

Names of 18993268437840

• Cardinal: 18993268437840 can be written as Eighteen trillion, nine hundred ninety-three billion, two hundred sixty-eight million, four hundred thirty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.899326843784 × 10¹³

Factors of 18993268437840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 32194

Divisors of 18993268437840

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 29 30 31 36 40 45 48 58 60 62 72 80 87 90 93 116 120 124 144 145 155 174 180 186 232 240 248 261 279 290 310 348 360 372 435 464 465 496 522 558 580 620 696 720 744 870 899 930 941 1044 1116 1160 1240 1305 1392 1395 1488 1740 1798 1860 1882 2088 2232 2320 2480 2610 2697 2790 2823 3480 3596 3720 3764 4176 4464 4495 4705 5220 5394 5580 5646 6960 7192 7440 7528 8091 8469 8990 9410 10440 10788 11160 11292 13485 14115 14384 15056 16182 16938 17980 18820 20880 21576 22320 22584 26970 27289 28230 29171 31183 32364 33876 35960 37640 40455 42345 43152 45168 53940 54578 56460 58342 62366 64728 67752 71920 75280 80910 81867 84690 87513 93549 107880 109156 112920 116684 124732 129456 135504 136445 145855 155915 161820 163734 169380 175026 187098 215760 218312 225840 233368 245601 249464 262539 272890 280647 291710 311830 323640 327468 338760 350052 374196 409335 436624 437565 466736 467745 491202 498928 525078 545780 561294 583420 623660 647280 654936 677520 700104 748392 818670 845959 875130 904307 935490 966673 982404 1050156 1091560 1122588 1166840 1228005 1247320 1309872 1312695 1400208 1403235 1496784 1637340 1691918 1750260 1808614 1870980 1933346 1964808 2100312 2183120 2245176 2333680 2456010 2494640 2537877 2625390 2712921 2806470 2900019 3274680 3383836 3500520 3617228 3741960 3866692 3929616 4200624 4229795 4490352 4521535 4833365 4912020 5075754 5250780 5425842 5612940 5800038 6549360 6767672 7001040 7234456 7483920 7613631 7733384 8138763 8459590 8700057 9043070 9666730 9824040 10151508 10501560 10851684 11225880 11600076 12689385 13535344 13564605 14468912 14500095 15227262 15466768 16277526 16919180 17400114 18086140 19333460 19648080 20303016 21003120 21703368 22451760 23200152 25378770 27129210 28033517 29000190 29343203 30454524 32555052 33838360 34800228 36172280 38068155 38666920 40606032 40693815 43406736 43500285 46400304 50757540 54258420 56067034 58000380 58686406 60909048 65110104 67676720 69600456 72344560 76136310 77333840 81387630 84100551 87000570 88029609 101515080 108516840 112134068 116000760 117372812 121818096 130220208 139200912 140167585 146716015 152272620 162775260 168201102 174001140 176059218 203030160 217033680 224268136 232001520 234745624 252301653 264088827 280335170 293432030 304545240 325550520 336402204 348002280 352118436 420502755 440148045 448536272 469491248 504603306 528177654 560670340 586864060 609090480 651101040 672804408 696004560 704236872 841005510 850952887 880296090 909639293 1009206612 1056355308 1121340680 1173728120 1261508265 1320444135 1345608816 1408473744 1682011020 1701905774 1760592180 1819278586 2018413224 2112710616 2242681360 2347456240 2523016530 2552858661 2640888270 2728917879 3364022040 3403811548 3521184360 3638557172 4036826448 4225421232 4254764435 4548196465 5046033060 5105717322 5281776540 5457835758 6728044080 6807623096 7042368720 7277114344 7658575983 8186753637 8509528870 9096392930 10092066120 10211434644 10563553080 10915671516 12764293305 13615246192 13644589395 14554228688 15317151966 16373507274 17019057740 18192785860 20184132240 20422869288 21127106160 21831343032 25528586610 26379539497 27289178790 30634303932 32747014548 34038115480 36385571720 38292879915 40845738576 40933768185 43662686064 51057173220 52759078994 54578357580 61268607864 65494029096 68076230960 72771143440 76585759830 79138618491 81867536370 102114346440 105518157988 109156715160 122537215728 130988058192 131897697485 153171519660 158277236982 163735072740 204228692880 211036315976 218313430320 237415855473 263795394970 306343039320 316554473964 327470145480 395693092455 422072631952 474831710946 527590789940 612686078640 633108947928 654940290960 791386184910 949663421892 1055181579880 1187079277365 1266217895856 1582772369820 1899326843784 2110363159760 2374158554730 3165544739640 3798653687568 4748317109460 6331089479280 9496634218920 18993268437840
• Sum of all divisors σ(n): 68188361379840
• Sum of proper divisors (its aliquot sum) s(n): 49195092942000
• 18993268437840 is an abundant number, because the sum of its proper divisors (49195092942000) is greater than itself. Its abundance is 30201824504160

Bases of 18993268437840

• Binary: 100010100011000110111000001001011001101010000₂
• Hexadecimal: 0x11463704B350
• Base-36: 6QDDXMWK0

Squares and roots of 18993268437840

• 18993268437840 squared (18993268437840²) is 360744245951849113943865600
• 18993268437840 cubed (18993268437840³) is 6851712300769645964255992345962914304000
• The square root of 18993268437840 is 4358126.7119990901
• The cube root of 18993268437840 is 26680.8647971645

Scales and comparisons

• 18,993,268,437,840 seconds is equal to 603,927 years, 9 weeks, 4 days, 19 hours, 24 minutes.
• To count from 1 to 18,993,268,437,840 would take you about one million, five hundred nine thousand, eight hundred seventeen 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 18993268437840 cubic inches would be around 2223.4 feet tall.

Recreational maths with 18993268437840

• 18993268437840 backwards is 04873486239981
• 18993268437840 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18993268437840's digits is 72
• More coming soon!