18979497501840

Names of 18979497501840

• Cardinal: 18979497501840 can be written as Eighteen trillion, nine hundred seventy-nine billion, four hundred ninety-seven million, five hundred one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.897949750184 × 10¹³

Factors of 18979497501840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 4404

Divisors of 18979497501840

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 27 30 34 36 40 45 48 51 54 60 68 72 80 85 90 102 108 120 135 136 144 153 157 170 180 204 216 240 255 270 272 306 314 340 360 408 432 459 471 510 540 612 628 680 720 765 785 816 918 942 1020 1033 1080 1224 1256 1360 1413 1530 1570 1836 1884 2040 2066 2160 2295 2355 2448 2512 2669 2826 3060 3099 3140 3187 3672 3768 4080 4132 4239 4590 4710 5165 5338 5652 6120 6198 6280 6374 7065 7344 7536 8007 8264 8478 9180 9297 9420 9561 10330 10676 11304 12240 12396 12560 12748 13345 14130 15495 15935 16014 16528 16956 17561 18360 18594 18840 19122 20660 21195 21352 22608 24021 24792 25496 26690 27891 28260 28683 30990 31870 32028 33912 35122 36720 37188 37680 38244 40035 41320 42390 42704 46485 47805 48042 49584 50992 52683 53380 54179 55782 56520 57366 61980 63740 64056 67824 70244 72063 74376 76488 80070 82640 84780 86049 87805 92970 95610 96084 105366 106760 108358 111564 113040 114732 120105 123960 127480 128112 139455 140488 143415 144126 148752 152976 158049 160140 162181 162537 169560 172098 175610 185940 191220 192168 210732 213520 216716 223128 229464 240210 247920 254960 263415 270895 278910 280976 286830 288252 316098 320280 324362 325074 339120 344196 351220 360315 371880 382440 384336 421464 430245 433432 446256 458928 474147 480420 486543 487611 500359 526830 541790 557820 573660 576504 632196 640560 648724 650148 688392 702440 720630 743760 764880 790245 810905 812685 842928 860490 866864 948294 960840 973086 975222 1000718 1053660 1083580 1115640 1147320 1153008 1264392 1297448 1300296 1376784 1404880 1441260 1459629 1462833 1501077 1580490 1621810 1625370 1720980 1896588 1921680 1946172 1950444 2001436 2107320 2167160 2231280 2294640 2370735 2432715 2438055 2501795 2528784 2594896 2600592 2757077 2882520 2919258 2925666 3002154 3160980 3243620 3250740 3292171 3441960 3793176 3892344 3900888 4002872 4214640 4334320 4378887 4503231 4741470 4865430 4876110 5003590 5514154 5765040 5838516 5851332 6004308 6321960 6487240 6501480 6584342 6883920 7298145 7314165 7505385 7586352 7784688 7801776 8005744 8271231 8506103 8757774 9006462 9482940 9730860 9752220 9876513 10007180 11028308 11677032 11702664 12008616 12643920 12974480 13002960 13168684 13509693 13785385 14596290 14628330 15010770 16460855 16542462 17012206 17515548 18012924 18965880 19461720 19504440 19753026 20014360 21894435 22056616 22516155 23354064 23405328 24017232 24813693 25518309 26337368 27019386 27570770 29192580 29256660 29629539 30021540 32921710 33084924 34024412 35031096 36025848 37931760 38923440 39008880 39506052 40028720 41356155 42530515 43788870 44113232 45032310 49382565 49627386 51036618 52674736 54038772 55141540 55966907 58385160 58513320 59259078 60043080 65843420 66169848 67548465 68048824 70062192 72051696 74441079 76554927 79012104 82712310 85061030 87577740 88888617 90064620 98765130 99254772 102073236 108077544 110283080 111933814 116770320 117026640 118518156 120086160 124068465 127591545 131686840 132339696 135096930 136097648 148147695 148882158 153109854 158024208 165424620 167900721 170122060 175155480 177777234 180129240 197530260 198509544 204146472 216155088 220566160 223867628 229664781 237036312 248136930 255183090 263373680 270193860 279834535 296295390 297764316 306219708 330849240 335801442 340244120 350310960 355554468 360258480 372205395 382774635 395060520 397019088 408292944 444443085 447735256 459329562 474072624 496273860 503702163 510366180 516870847 540387720 559669070 592590780 595528632 612439416 661698480 671602884 680488240 711108936 744410790 765549270 790121040 839503605 888886170 895470512 918659124 992547720 1007404326 1020732360 1033741694 1080775440 1119338140 1148323905 1185181560 1191057264 1224878832 1343205768 1422217872 1488821580 1511106489 1531098540 1550612541 1679007210 1777772340 1837318248 1985095440 2014808652 2041464720 2067483388 2238676280 2296647810 2370363120 2518510815 2584354235 2686411536 2977643160 3022212978 3062197080 3101225082 3358014420 3555544680 3674636496 4029617304 4134966776 4477352560 4593295620 4651837623 5037021630 5168708470 5955286320 6044425956 6124394160 6202450164 6716028840 7111089360 7555532445 7753062705 8059234608 8269933552 8786804399 9186591240 9303675246 10074043260 10337416940 12088851912 12404900328 13432057680 13955512869 15111064890 15506125410 17573608798 18373182480 18607350492 20148086520 20674833880 23259188115 24177703824 24809800656 26360413197 27911025738 30222129780 31012250820 35147217596 37214700984 40296173040 41349667760 43934021995 46518376230 52720826394 55822051476 60444259560 62024501640 69777564345 70294435192 74429401968 79081239591 87868043990 93036752460 105441652788 111644102952 120888519120 124049003280 131802065985 139555128690 140588870384 158162479182 175736087980 186073504920 210883305576 223288205904 237243718773 263604131970 279110257380 316324958364 351472175960 372147009840 395406197955 421766611152 474487437546 527208263940 558220514760 632649916728 702944351920 790812395910 948974875092 1054416527880 1116441029520 1186218593865 1265299833456 1581624791820 1897949750184 2108833055760 2372437187730 3163249583640 3795899500368 4744874375460 6326499167280 9489748750920 18979497501840
• Sum of all divisors σ(n): 69749545029120
• Sum of proper divisors (its aliquot sum) s(n): 50770047527280
• 18979497501840 is an abundant number, because the sum of its proper divisors (50770047527280) is greater than itself. Its abundance is 31790550025440

Bases of 18979497501840

• Binary: 100010100001100000010001101001110010010010000₂
• Hexadecimal: 0x11430234E490
• Base-36: 6Q726RYC0

Squares and roots of 18979497501840

• 18979497501840 squared (18979497501840²) is 360221325422350800803385600
• 18979497501840 cubed (18979497501840³) is 6836819745963000706747980460214229504000
• The square root of 18979497501840 is 4356546.5109235319
• The cube root of 18979497501840 is 26674.4149801837

Scales and comparisons

• 18,979,497,501,840 seconds is equal to 603,489 years, 16 weeks, 1 day, 23 hours, 24 minutes.
• To count from 1 to 18,979,497,501,840 would take you about one million, five hundred eight thousand, seven hundred twenty-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 18979497501840 cubic inches would be around 2222.9 feet tall.

Recreational maths with 18979497501840

• 18979497501840 backwards is 04810579497981
• 18979497501840 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18979497501840's digits is 72
• More coming soon!