668815061400

Names of 668815061400

• Cardinal: 668815061400 can be written as Six hundred sixty-eight billion, eight hundred fifteen million, sixty-one thousand, four hundred.

Scientific notation

• Scientific notation: 6.688150614 × 10¹¹

Factors of 668815061400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 400

Divisors of 668815061400

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 27 30 31 36 40 45 50 54 60 62 72 75 90 93 100 108 120 124 135 150 155 180 186 200 216 225 248 270 279 300 310 359 360 372 450 465 540 558 600 620 675 718 744 775 837 900 930 961 1077 1080 1116 1240 1350 1395 1436 1550 1674 1795 1800 1860 1922 2154 2232 2325 2700 2790 2872 2883 3100 3231 3348 3590 3720 3844 4185 4308 4650 4805 5385 5400 5580 5766 6200 6462 6696 6975 7180 7688 8370 8616 8649 8975 9300 9610 9693 10770 11129 11160 11532 12924 13950 14360 14415 16155 16740 17298 17950 18600 19220 19386 20925 21540 22258 23064 24025 25848 25947 26925 27900 28830 32310 33387 33480 34596 35900 38440 38772 41850 43080 43245 44516 48050 48465 51894 53850 55645 55800 57660 64620 66774 69192 71800 72075 77544 80775 83700 86490 89032 96100 96930 100161 103788 107700 111290 115320 128881 129240 129735 133548 144150 161550 166935 167400 172980 192200 193860 200322 207576 215400 216225 222580 242325 257762 259470 267096 278225 288300 300483 323100 333870 344999 345960 386643 387720 400644 432450 445160 484650 500805 515524 518940 556450 576600 600966 644405 646200 648675 667740 689998 773286 801288 834675 864900 969300 1001610 1031048 1034997 1037880 1112900 1159929 1201932 1288810 1297350 1335480 1379996 1502415 1546572 1669350 1724995 1729800 1933215 1938600 2003220 2069994 2225800 2319858 2403864 2504025 2577620 2594700 2759992 3004830 3093144 3104991 3222025 3338700 3449990 3479787 3866430 3995311 4006440 4139988 4639716 5008050 5155240 5174985 5189400 5799645 6009660 6209982 6444050 6677400 6899980 6959574 7512075 7732860 7990622 8279976 8624975 9279432 9314973 9666075 10016100 10349970 11599290 11985933 12019320 12419964 12888100 13799960 13919148 15024150 15465720 15524955 15981244 17249950 17398935 18629946 19332150 19976555 20032200 20699940 23198580 23971866 24839928 25776200 25874925 27838296 28998225 30048300 31049910 31962488 34499900 34797870 35957799 37259892 38664300 39953110 41399880 46397160 46574865 47943732 51749850 57996450 59929665 60096600 62099820 68999800 69595740 71915598 74519784 77328600 77624775 79906220 86994675 93149730 95887464 99882775 103499700 107873397 115992900 119859330 123854641 124199640 139191480 143831196 155249550 159812440 173989350 179788995 186299460 199765550 206999400 215746794 231985800 232874325 239718660 247709282 287662392 299648325 310499100 347978700 359577990 371563923 372598920 399531100 431493588 465748650 479437320 495418564 539366985 599296650 619273205 620998200 695957400 719155980 743127846 799062200 862987176 898944975 931497300 990837128 1078733970 1114691769 1198593300 1238546410 1438311960 1486255692 1797889950 1857819615 1862994600 2157467940 2229383538 2397186600 2477092820 2696834925 2972511384 3096366025 3344075307 3595779900 3715639230 4314935880 4458767076 4954185640 5393669850 5573458845 6192732050 6688150614 7191559800 7431278460 8917534152 9289098075 10787339700 11146917690 12385464100 13376301228 14862556920 16720376535 18578196150 21574679400 22293835380 24770928200 26752602456 27867294225 33440753070 37156392300 44587670760 55734588450 66881506140 74312784600 83601882675 111469176900 133763012280 167203765350 222938353800 334407530700 668815061400
• Sum of all divisors σ(n): 2387055421800
• Sum of proper divisors (its aliquot sum) s(n): 1718240360400
• 668815061400 is an abundant number, because the sum of its proper divisors (1718240360400) is greater than itself. Its abundance is 1049425299000

Bases of 668815061400

• Binary: 1001101110111000011110111111000110011000₂
• Hexadecimal: 0x9BB87BF198
• Base-36: 8J8Z7W60

Squares and roots of 668815061400

• 668815061400 squared (668815061400²) is 447313586355485769960000
• 668815061400 cubed (668815061400³) is 299170063723398417462623675544000000
• The square root of 668815061400 is 817811.1404230197
• The cube root of 668815061400 is 8745.1785634743

Scales and comparisons

• 668,815,061,400 seconds is equal to 21,266 years, 13 weeks, 1 hour, 30 minutes.
• To count from 1 to 668,815,061,400 would take you about forty-two thousand, five hundred thirty-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 668815061400 cubic inches would be around 728.8 feet tall.

Recreational maths with 668815061400

• 668815061400 backwards is 004160518866
• 668815061400 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 668815061400's digits is 45
• More coming soon!