1218816903682440

Names of 1218816903682440

• Cardinal: 1218816903682440 can be written as One quadrillion, two hundred eighteen trillion, eight hundred sixteen billion, nine hundred three million, six hundred eighty-two thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.21881690368244 × 10¹⁵

Factors of 1218816903682440

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 120142

Divisors of 1218816903682440

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 30 34 36 40 45 51 60 68 72 85 90 102 120 136 153 170 180 204 255 306 340 360 408 439 510 612 680 765 878 1020 1224 1317 1530 1756 2040 2195 2634 3060 3512 3919 3951 4390 5268 6120 6585 7463 7838 7902 8780 10536 11757 13170 14926 15676 15804 17560 19595 19755 22389 23514 26340 29852 31352 31608 35271 37315 39190 39510 44778 47028 52680 58785 59704 66623 67167 70542 74630 78380 79020 89556 94056 111945 115757 117570 133246 134334 141084 149260 156760 158040 176355 179112 199869 223890 231514 235140 266492 268668 282168 298520 333115 335835 347271 352710 399738 447780 463028 470280 532984 537336 578785 599607 666230 671670 694542 705420 799476 895560 926056 999345 1041813 1157570 1199214 1332460 1343340 1389084 1410840 1598952 1720441 1736355 1967869 1998690 2083626 2315140 2398428 2664920 2686680 2778168 2998035 3440882 3472710 3935738 3997380 4167252 4630280 4796856 5161323 5209065 5903607 5996070 6881764 6945420 7871476 7994760 8334504 8602205 9839345 10322646 10418130 11807214 11992140 13763528 13890840 15483969 15742952 17204410 17710821 19678690 20645292 20836260 23614428 23984280 25806615 29247497 29518035 30967938 34408820 35421642 39357380 41290584 41672520 47228856 50817323 51613230 58494994 59036070 61935876 68817640 70843284 77419845 78714760 87742491 88554105 101634646 103226460 116989988 118072140 123871752 141686568 146237485 152451969 154839690 175484982 177108210 203269292 206452920 233979976 236144280 254086615 263227473 292474970 304903938 309679380 350969964 354216420 406538584 438712455 453651683 457355907 508173230 526454946 584949940 609807876 619358760 701939928 708432840 762259845 863894491 877424910 907303366 914711814 1016346460 1052909892 1169899880 1219615752 1316137365 1360955049 1524519690 1727788982 1754849820 1814606732 1829423628 2032692920 2105819784 2268258415 2286779535 2591683473 2632274730 2721910098 3049039380 3455577964 3509699640 3629213464 3658847256 4082865147 4319472455 4536516830 4573559070 5183366946 5264549460 5443820196 6098078760 6804775245 6911155928 7712078611 7775050419 8165730294 8638944910 9073033660 9147118140 10366733892 10529098920 10887640392 12958417365 13609550490 15424157222 15550100838 16331460588 17277889820 18146067320 18294236280 20414325735 20733467784 23136235833 25916834730 27219100980 30848314444 31100201676 32662921176 34555779640 38560393055 38875252095 40828651470 46272471666 51833669460 54438201960 61696628888 62200403352 69408707499 77120786110 77750504190 81657302940 92544943332 103667338920 115681179165 138817414998 154241572220 155501008380 163314605880 185089886664 199153088837 231362358330 277634829996 308483144440 311002016760 347043537495 398306177674 462724716660 555269659992 597459266511 694087074990 796612355348 925449433320 995765444185 1194918533022 1388174149980 1593224710696 1792377799533 1991530888370 2389837066044 2776348299960 2987296332555 3385602510229 3584755599066 3983061776740 4779674132088 5974592665110 6771205020458 7169511198132 7966123553480 8961888997665 10156807530687 11949185330220 13542410040916 14339022396264 16928012551145 17923777995330 20313615061374 23898370660440 27084820081832 30470422592061 33856025102290 35847555990660 40627230122748 50784037653435 60940845184122 67712050204580 71695111981320 81254460245496 101568075306870 121881690368244 135424100409160 152352112960305 203136150613740 243763380736488 304704225920610 406272301227480 609408451841220 1218816903682440
• Sum of all divisors σ(n): 4204826930304000
• Sum of proper divisors (its aliquot sum) s(n): 2986010026621560
• 1218816903682440 is an abundant number, because the sum of its proper divisors (2986010026621560) is greater than itself. Its abundance is 1767193122939120

Bases of 1218816903682440

• Binary: 100010101001000000111101100100101110001100110001000₂
• Hexadecimal: 0x45481EC971988
• Base-36: C018R7J6A0

Squares and roots of 1218816903682440

• 1218816903682440 squared (1218816903682440²) is 1485514644702050224032364353600
• 1218816903682440 cubed (1218816903682440³) is 1810570359630672825936049648110995630270784000
• The square root of 1218816903682440 is 34911558.3107148055
• The cube root of 1218816903682440 is 106818.4215817235

Scales and comparisons

• 1,218,816,903,682,440 seconds is equal to 38,754,607 years, 25 weeks, 2 days, 22 hours, 54 minutes.
• To count from 1 to 1,218,816,903,682,440 would take you about one hundred sixteen million, two hundred sixty-three thousand, eight 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 1218816903682440 cubic inches would be around 8901.5 feet tall.

Recreational maths with 1218816903682440

• 1218816903682440 backwards is 0442863096188121
• The number of decimal digits it has is: 16
• The sum of 1218816903682440's digits is 63
• More coming soon!