686728067472720

Names of 686728067472720

• Cardinal: 686728067472720 can be written as Six hundred eighty-six trillion, seven hundred twenty-eight billion, sixty-seven million, four hundred seventy-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 6.8672806747272 × 10¹⁴

Factors of 686728067472720

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1767412

Divisors of 686728067472720

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 26 27 28 30 35 36 39 40 42 45 48 52 54 56 60 63 65 70 72 78 80 84 90 91 104 105 108 112 117 120 126 130 135 140 144 156 168 180 182 189 195 208 210 216 234 240 252 260 270 273 280 312 315 336 351 360 364 378 390 420 432 455 468 504 520 540 546 560 585 624 630 702 720 728 756 780 819 840 910 936 945 1008 1040 1080 1092 1170 1260 1365 1404 1456 1512 1560 1638 1680 1755 1820 1872 1890 1979 2160 2184 2340 2457 2520 2730 2808 3024 3120 3276 3510 3640 3780 3958 4095 4368 4680 4914 5040 5460 5616 5937 6552 7020 7280 7560 7916 8190 9360 9828 9895 10920 11874 12285 13104 13853 14040 15120 15832 16380 17811 19656 19790 21840 23748 24570 25727 27706 28080 29685 31664 32760 35622 39312 39580 41559 47496 49140 51454 53433 55412 59370 65520 69265 71244 77181 79160 83118 89055 94992 98280 102908 106866 110824 118740 124677 128635 138530 142488 154362 158320 166236 178110 180089 196560 205816 207795 213732 221648 231543 237480 249354 257270 267165 277060 284976 308724 332472 356220 360178 374031 385905 411632 415590 427464 463086 474960 498708 514540 534330 540267 554120 617448 623385 664944 694629 712440 720356 748062 771810 831180 854928 900445 926172 997416 1029080 1068660 1080534 1108240 1157715 1234896 1246770 1389258 1424880 1440712 1496124 1543620 1620801 1662360 1765403 1800890 1852344 1870155 1994832 2058160 2137320 2161068 2315430 2493540 2701335 2778516 2881424 2992248 3087240 3241602 3324720 3473145 3530806 3601780 3704688 3740310 4274640 4322136 4630860 4862403 4987080 5296209 5402670 5557032 5984496 6174480 6483204 6946290 7061612 7203560 7480620 8104005 8644272 8827015 9261720 9724806 9974160 10592418 10805340 11114064 12357821 12966408 13892580 14123224 14407120 14961240 15888627 16208010 17654030 18523440 19449612 21184836 21610680 22950239 24312015 24715642 25932816 26481045 27785160 28246448 29922480 31777254 32416020 35308060 37073463 38899224 42369672 43221360 45900478 47665881 48624030 49431284 52962090 55570320 61789105 63554508 64832040 68850717 70616120 74146926 77798448 79443135 84739344 91800956 95331762 97248060 98862568 105924180 111220389 114751195 123578210 127109016 129664080 137701434 141232240 148293852 158886270 160651673 183601912 185367315 190663524 194496120 197725136 206552151 211848360 222440778 229502390 238329405 247156420 254218032 275402868 296587704 317772540 321303346 333661167 344253585 367203824 370734630 381327048 388992240 413104302 423696720 444881556 459004780 476658810 481955019 494312840 550805736 556101945 593175408 619656453 635545080 642606692 667322334 688507170 741469260 762654096 803258365 826208604 889763112 918009560 953317620 963910038 988625680 1032760755 1101611472 1112203890 1239312906 1271090160 1285213384 1334644668 1377014340 1445865057 1482938520 1606516730 1652417208 1668305835 1779526224 1836019120 1906635240 1927820076 2065521510 2224407780 2409775095 2478625812 2570426768 2669289336 2754028680 2891730114 2965877040 3098282265 3213033460 3304834416 3336611670 3493732537 3813270480 3855640152 4131043020 4337595171 4448815560 4819550190 4957251624 5338578672 5508057360 5783460228 6196564530 6426066920 6673223340 6987465074 7229325285 7711280304 8262086040 8675190342 8897631120 9639100380 9914503248 10481197611 11566920456 12393129060 12852133840 13346446680 13974930148 14458650570 16524172080 17350380684 17468662685 19278200760 20962395222 21687975855 23133840912 24456127759 24786258120 26692893360 27949860296 28917301140 31443592833 34700761368 34937325370 38556401520 41924790444 43375951710 45418522981 48912255518 49572516240 52405988055 55899720592 57834602280 62887185666 69401522736 69874650740 73368383277 83849580888 86751903420 90837045962 94330778499 97824511036 104811976110 115669204560 122280638795 125774371332 136255568943 139749301480 146736766554 157217964165 167699161776 173503806840 181674091924 188661556998 195649022072 209623952220 220105149831 227092614905 244561277590 251548742664 272511137886 279498602960 293473533108 314435928330 317929660867 347007613680 363348183848 366841916385 377323113996 391298044144 408766706829 419247904440 440210299662 454185229810 471653892495 489122555180 503097485328 545022275772 586947066216 628871856660 635859321734 660315449493 681277844715 726696367696 733683832770 754646227992 817533413658 838495808880 880420599324 908370459620 943307784990 953788982601 978245110360 1090044551544 1100525749155 1173894132432 1226300120487 1257743713320 1271718643468 1320630898986 1362555689430 1467367665540 1509292455984 1589648304335 1635066827316 1760841198648 1816740919240 1886615569980 1907577965202 1956490220720 2043833534145 2180089103088 2201051498310 2452600240974 2515487426640 2543437286936 2641261797972 2725111378860 2861366947803 2934735331080 3179296608670 3270133654632 3301577247465 3521682397296 3633481838480 3773231139960 3815155930404 4087667068290 4402102996620 4768944913005 4905200481948 5086874573872 5282523595944 5450222757720 5722733895606 5869470662160 6131500602435 6358593217340 6540267309264 6603154494930 7546462279920 7630311860808 8175334136580 8584100843409 8804205993240 9537889826010 9810400963896 10565047191888 10900445515440 11445467791212 12263001204870 12717186434680 13206308989860 14306834739015 15260623721616 16350668273160 17168201686818 17608411986480 19075779652020 19620801927792 22890935582424 24526002409740 25434372869360 26412617979720 28613669478030 32701336546320 34336403373636 38151559304040 42920504217045 45781871164848 49052004819480 52825235959440 57227338956060 68672806747272 76303118608080 85841008434090 98104009638960 114454677912120 137345613494544 171682016868180 228909355824240 343364033736360 686728067472720
• Sum of all divisors σ(n): 2912730173337600
• Sum of proper divisors (its aliquot sum) s(n): 2226002105864880
• 686728067472720 is an abundant number, because the sum of its proper divisors (2226002105864880) is greater than itself. Its abundance is 1539274038392160

Bases of 686728067472720

• Binary: 10011100001001001101010110100001001101110101010000₂
• Hexadecimal: 0x270935684DD50
• Base-36: 6RFAIOKVO0

Squares and roots of 686728067472720

• 686728067472720 squared (686728067472720²) is 471595438654816672887944198400
• 686728067472720 cubed (686728067472720³) is 323857824216371929772614164578685474267648000
• The square root of 686728067472720 is 26205496.8942151525
• The cube root of 686728067472720 is 88225.6633976077

Scales and comparisons

• 686,728,067,472,720 seconds is equal to 21,835,828 years, 18 weeks, 3 days, 16 hours, 12 minutes.
• To count from 1 to 686,728,067,472,720 would take you about fifty-four million, five hundred eighty-nine thousand, five hundred seventy 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 686728067472720 cubic inches would be around 7352.1 feet tall.

Recreational maths with 686728067472720

• 686728067472720 backwards is 027274760827686
• 686728067472720 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 686728067472720's digits is 72
• More coming soon!