668012905872

Names of 668012905872

• Cardinal: 668012905872 can be written as Six hundred sixty-eight billion, twelve million, nine hundred five thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 6.68012905872 × 10¹¹

Factors of 668012905872

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 871

Divisors of 668012905872

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 17 18 24 26 27 34 36 39 48 51 52 54 68 72 78 79 81 102 104 108 117 136 144 153 156 158 162 169 204 208 216 221 234 237 243 272 306 312 316 324 338 351 408 432 442 459 468 474 486 507 612 624 632 648 663 676 702 711 757 816 884 918 936 948 972 1014 1027 1053 1224 1264 1296 1326 1343 1352 1377 1404 1422 1514 1521 1768 1836 1872 1896 1944 1989 2028 2054 2106 2133 2271 2448 2652 2686 2704 2754 2808 2844 2873 3028 3042 3081 3159 3536 3672 3792 3888 3978 4029 4056 4108 4131 4212 4266 4542 4563 5304 5372 5508 5616 5688 5746 5967 6056 6084 6162 6318 6399 6813 7344 7956 8058 8112 8216 8262 8424 8532 8619 9084 9126 9243 9841 10608 10744 11016 11376 11492 11934 12087 12112 12168 12324 12636 12798 12869 13351 13626 13689 15912 16116 16432 16524 16848 17064 17238 17459 17901 18168 18252 18486 19197 19682 20439 21488 22032 22984 23868 24174 24336 24648 25272 25596 25738 25857 26702 27252 27378 27729 29523 31824 32232 33048 34128 34476 34918 35802 36261 36336 36504 36972 38394 38607 39364 40053 40878 41067 45968 47736 48348 49296 50544 51192 51476 51714 52377 53404 53703 54504 54756 55458 59046 59803 61317 64464 66096 68952 69836 71604 72522 73008 73944 76788 77214 77571 78728 80106 81756 82134 83187 88569 95472 96696 102384 102952 103428 104754 106808 107406 108783 109008 109512 110916 115821 118092 119606 120159 122634 127933 137904 139672 143208 145044 147888 153576 154428 155142 157131 157456 160212 163512 164268 166374 167297 177138 179409 183951 193392 205904 206856 209508 213616 214812 217566 219024 221832 226967 231642 232713 236184 239212 240318 245268 249561 255866 265707 279344 286416 290088 307152 308856 310284 314262 320424 326349 327024 328536 332748 334594 347463 354276 358818 360477 367902 383799 413712 419016 429624 435132 443664 453934 463284 465426 471393 472368 478424 480636 490536 499122 501891 511732 531414 538227 580176 617712 620568 628524 640848 652698 657072 665496 669188 680901 694926 698139 708552 717636 720954 735804 767598 777439 797121 838032 859248 870264 907868 926568 930852 942786 956848 961272 981072 998244 1003782 1016651 1023464 1042389 1062828 1076454 1081431 1151397 1241136 1257048 1305396 1330992 1338376 1361802 1389852 1396278 1414179 1417104 1435272 1441908 1471608 1505673 1535196 1554878 1594242 1614681 1740528 1815736 1853136 1861704 1885572 1922544 1996488 2007564 2033302 2042703 2046928 2084778 2125656 2152908 2162862 2174861 2302794 2332317 2391363 2514096 2610792 2676752 2723604 2779704 2792556 2828358 2870544 2883816 2943216 3011346 3049953 3070392 3109756 3127167 3188484 3229362 3244293 3454191 3631472 3723408 3771144 3992976 4015128 4066604 4085406 4169556 4242537 4251312 4305816 4325724 4349722 4517019 4605588 4664634 4782726 4844043 5221584 5447208 5559408 5585112 5656716 5767632 6022692 6099906 6128109 6140784 6219512 6254334 6376968 6458724 6488586 6524583 6908382 6996951 7542288 8030256 8133208 8170812 8339112 8485074 8611632 8651448 8699444 9034038 9149859 9211176 9329268 9565452 9688086 10106707 10362573 10894416 11170224 11313432 12045384 12199812 12256218 12439024 12508668 12753936 12917448 12977172 13049166 13216463 13551057 13816764 13993902 14532129 16266416 16341624 16678224 16970148 17302896 17398888 18068076 18299718 18384327 18422352 18658536 19130904 19376172 19573749 20213414 20725146 20990853 22626864 24090768 24399624 24512436 25017336 25834896 25954344 26098332 26432926 27102114 27449577 27633528 27987804 29064258 30320121 31087719 32683248 33940296 34797776 36136152 36599436 36768654 37317072 38261808 38752344 39147498 39649389 40426828 40653171 41450292 41981706 48799248 49024872 50034672 51908688 52196664 52865852 54204228 54899154 55152981 55267056 55975608 58128516 58721247 60640242 62175438 62972559 67880592 72272304 73198872 73537308 77504688 78294996 79298778 80853656 81306342 82348731 82900584 83963412 90960363 98049744 104393328 105731704 108408456 109798308 110305962 111951216 116257032 117442494 118948167 121280484 124350876 125945118 146397744 147074616 156589992 158597556 161707312 162612684 164697462 165801168 167926824 171814019 176163741 181920726 188917677 211463408 216816912 219596616 220611924 232514064 234884988 237896334 242560968 247046193 248701752 251890236 272881089 294149232 313179984 317195112 325225368 329394924 335853648 343628038 352327482 356844501 363841452 377835354 439193232 441223848 469769976 475792668 485121936 494092386 497403504 503780472 515442057 528491223 545762178 634390224 650450736 658789848 687256076 704654964 713689002 727682904 755670708 818643267 882447696 939539952 951585336 988184772 1007560944 1030884114 1056982446 1070533503 1091524356 1317579696 1374512152 1409309928 1427378004 1455365808 1511341416 1546326171 1637286534 1903170672 1976369544 2061768228 2113964892 2141067006 2183048712 2455929801 2749024304 2818619856 2854756008 3022682832 3092652342 3211600509 3274573068 3952739088 4123536456 4227929784 4282134012 4366097424 4638978513 4911859602 5709512016 6185304684 6423201018 6549146136 8247072912 8455859568 8564268024 9277957026 9823719204 12370609368 12846402036 13098292272 13916935539 17128536048 18555914052 19647438408 24741218736 25692804072 27833871078 37111828104 39294876816 41750806617 51385608144 55667742156 74223656208 83501613234 111335484312 167003226468 222670968624 334006452936 668012905872
• Sum of all divisors σ(n): 2253958237440
• Sum of proper divisors (its aliquot sum) s(n): 1585945331568
• 668012905872 is an abundant number, because the sum of its proper divisors (1585945331568) is greater than itself. Its abundance is 917932425696

Bases of 668012905872

• Binary: 1001101110001000101011000000010110010000₂
• Hexadecimal: 0x9B88AC0590
• Base-36: 8IVPMX00

Squares and roots of 668012905872

• 668012905872 squared (668012905872²) is 446241242411553532080384
• 668012905872 cubed (668012905872³) is 298094909063273443910902689329614848
• The square root of 668012905872 is 817320.5649388739
• The cube root of 668012905872 is 8741.6809350449

Scales and comparisons

• 668,012,905,872 seconds is equal to 21,240 years, 38 weeks, 4 days, 20 hours, 31 minutes, 12 seconds.
• To count from 1 to 668,012,905,872 would take you about forty-two thousand, four hundred eighty-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 668012905872 cubic inches would be around 728.5 feet tall.

Recreational maths with 668012905872

• 668012905872 backwards is 278509210866
• 668012905872 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 668012905872's digits is 54
• More coming soon!