121542661891420

Names of 121542661891420

• Cardinal: 121542661891420 can be written as One hundred twenty-one trillion, five hundred forty-two billion, six hundred sixty-one million, eight hundred ninety-one thousand, four hundred twenty.

Scientific notation

• Scientific notation: 1.2154266189142 × 10¹⁴

Factors of 121542661891420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 222

Divisors of 121542661891420

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 4 5 7 10 11 14 20 22 28 35 44 49 55 70 77 98 110 121 140 154 196 197 220 242 245 308 343 385 394 484 490 539 605 686 770 788 847 980 985 1078 1210 1331 1372 1379 1540 1694 1715 1970 2156 2167 2401 2420 2662 2695 2758 3388 3430 3773 3940 4235 4334 4802 5324 5390 5516 5929 6655 6860 6895 7546 8470 8668 9317 9604 9653 10780 10835 11858 12005 13310 13790 15092 15169 16807 16940 18634 18865 19306 21670 23716 23837 24010 26411 26620 27580 29645 30338 33614 37268 37730 38612 38809 41503 43340 46585 47674 48020 48265 52822 59290 60676 65219 67228 67571 75460 75845 77618 83006 84035 93170 95348 96530 105644 106183 117649 118580 119185 130438 132055 135142 151690 155236 166012 166859 168070 184877 186340 193060 194045 207515 212366 235298 238370 260876 262207 264110 270284 271663 290521 303380 326095 333718 336140 337855 369754 388090 415030 424732 426899 456533 470596 472997 476740 524414 528220 530915 543326 581042 588245 652190 667436 675710 739508 743281 776180 830060 834295 853798 913066 924385 945994 1048828 1061830 1086652 1162084 1168013 1176490 1294139 1304380 1311035 1351420 1358315 1452605 1486562 1668590 1707596 1826132 1835449 1848770 1891988 1901641 2033647 2123660 2134495 2282665 2336026 2352980 2364985 2588278 2622070 2716630 2905210 2973124 2988293 3195731 3310979 3337180 3670898 3697540 3716405 3803282 4067294 4268990 4565330 4672052 4695889 4729970 5176556 5202967 5244140 5433260 5810420 5840065 5976586 6391462 6470695 6621958 7341796 7432810 7606564 8134588 8176091 8537980 9130660 9177245 9391778 9459940 9508205 10168235 10405934 11680130 11953172 12782924 12848143 12941390 13243916 13311487 14235529 14865620 14941465 15978655 16352182 16554895 18354490 18783556 19016410 20336470 20811868 20918051 22370117 23176853 23360260 23479445 25696286 25882780 26014835 26622974 28471058 29882930 31957310 32704364 32871223 33109790 36420769 36708980 38032820 40672940 40880455 41836102 44740234 46353706 46958890 51392572 51654779 52029670 53245948 56942116 57232637 59765860 63914620 64240715 65742446 66219580 66557435 71177645 72841538 81760910 83672204 89480468 89937001 92707412 93180409 93917780 103309558 104059340 104590255 111850585 114465274 115884265 128481430 131484892 133114870 142355290 145683076 146426357 156590819 163521820 164356115 179874002 182103845 186360818 206619116 209180510 223701170 228930548 230098561 231768530 254945383 256962860 258273895 266229740 284710580 286163185 292852714 313181638 328712230 359748004 361583453 364207690 372721636 400628459 418361020 447402340 449685005 460197122 463537060 465902045 509890766 516547790 572326370 585705428 626363276 629559007 652262863 657424460 723166906 728415380 732131785 782954095 801256918 899370010 920394244 931804090 1019781532 1024984499 1033095580 1144652740 1150492805 1259118014 1274726915 1304525726 1446333812 1464263570 1565908190 1602513836 1610689927 1798740020 1807917265 1863608180 2003142295 2049968998 2300985610 2518236028 2531084171 2549453830 2609051452 2804399213 2928527140 3131816380 3147795035 3221379854 3261314315 3615834530 4006284590 4099937996 4406913049 4565840041 4601971220 5062168342 5098907660 5124922495 5608798426 6295590070 6442759708 6522628630 7174891493 7231669060 8012569180 8053449635 8813826098 9131680082 10124336684 10249844990 11217596852 11274829489 12591180140 12655420855 13045257260 14021996065 14349782986 16106899270 17627652196 17717589197 18263360164 20499689980 22034565245 22549658978 22829200205 25310841710 28043992130 28699565972 30848391343 32213798540 35435178394 35874457465 44069130490 45099317956 45658400410 50224240451 50621683420 56087984260 56374147445 61696782686 70870356788 71748914930 78923806423 88138260980 88587945985 91316800820 100448480902 112748294890 123393565372 124023124379 143497829860 154241956715 157847612846 177175891970 200896961804 225496589780 248046248758 251121202255 308483913430 315695225692 354351783940 394619032115 496092497516 502242404510 552466644961 616967826860 620115621895 789238064230 868161870653 1004484809020 1104933289922 1240231243790 1578476128460 1736323741306 2209866579844 2480462487580 2762333224805 3472647482612 4340809353265 5524666449610 6077133094571 8681618706530 11049332899220 12154266189142 17363237413060 24308532378284 30385665472855 60771330945710 121542661891420
• Sum of all divisors σ(n): 329205755832912
• Sum of proper divisors (its aliquot sum) s(n): 207663093941492
• 121542661891420 is an abundant number, because the sum of its proper divisors (207663093941492) is greater than itself. Its abundance is 86120432050072

Bases of 121542661891420

• Binary: 11011101000101011011011001011111110010101011100₂
• Hexadecimal: 0x6E8ADB2FE55C
• Base-36: 172ZXER23G

Squares and roots of 121542661891420

• 121542661891420 squared (121542661891420²) is 14772618659652039531869616400
• 121542661891420 cubed (121542661891420³) is 1795503395000969944367648561804453851288000
• The square root of 121542661891420 is 11024638.8553739029
• The cube root of 121542661891420 is 49534.7050287963

Scales and comparisons

• 121,542,661,891,420 seconds is equal to 3,864,680 years, 35 weeks, 6 days, 21 hours, 23 minutes, 40 seconds.
• To count from 1 to 121,542,661,891,420 would take you about nine million, six hundred sixty-one thousand, seven hundred 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 121542661891420 cubic inches would be around 4127.9 feet tall.

Recreational maths with 121542661891420

• 121542661891420 backwards is 024198166245121
• The number of decimal digits it has is: 15
• The sum of 121542661891420's digits is 52
• More coming soon!