668127792640

Names of 668127792640

• Cardinal: 668127792640 can be written as Six hundred sixty-eight billion, one hundred twenty-seven million, seven hundred ninety-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 6.6812779264 × 10¹¹

Factors of 668127792640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 3583

Divisors of 668127792640

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 28 31 32 35 40 44 55 56 62 64 70 77 80 88 110 112 124 128 140 154 155 160 176 217 220 224 248 256 280 308 310 320 341 352 385 434 440 448 496 512 560 616 620 640 682 704 770 868 880 896 961 992 1085 1120 1232 1240 1280 1364 1408 1540 1705 1736 1760 1792 1922 1984 2170 2240 2387 2464 2480 2560 2728 2816 3080 3410 3472 3520 3527 3584 3844 3968 4340 4480 4774 4805 4928 4960 5456 5632 6160 6727 6820 6944 7040 7054 7688 7936 8680 8960 9548 9610 9856 9920 10571 10912 11935 12320 13454 13640 13888 14080 14108 15376 15872 17360 17635 17920 19096 19220 19712 19840 21142 21824 23870 24640 24689 26908 27280 27776 28160 28216 30752 33635 34720 35270 38192 38440 38797 39424 39680 42284 43648 47740 49280 49378 52855 53816 54560 55552 56432 61504 67270 69440 70540 73997 76384 76880 77594 79360 84568 87296 95480 98560 98756 105710 107632 109120 109337 111104 112864 123008 123445 134540 138880 141080 147994 152768 153760 155188 169136 174592 190960 193985 197120 197512 211420 215264 218240 218674 225728 246016 246890 269080 271579 277760 282160 295988 305536 307520 310376 338272 369985 381920 387970 395024 422840 430528 436480 437348 451456 492032 493780 538160 543158 546685 555520 564320 591976 611072 615040 620752 676544 739970 763840 765359 775940 790048 845680 861056 872960 874696 902912 987560 1076320 1086316 1093370 1128640 1183952 1202707 1222144 1230080 1241504 1353088 1357895 1479940 1527680 1530718 1551880 1580096 1691360 1722112 1749392 1805824 1975120 2152640 2172632 2186740 2257280 2367904 2405414 2460160 2483008 2706176 2715790 2959880 3055360 3061436 3103760 3160192 3382720 3389447 3444224 3498784 3826795 3950240 4305280 4345264 4373480 4514560 4735808 4810828 4966016 5412352 5431580 5919760 6013535 6110720 6122872 6207520 6320384 6765440 6778894 6997568 7653590 7900480 8418949 8610560 8690528 8746960 9029120 9471616 9621656 9932032 10863160 11839520 12027070 12245744 12415040 12640768 13530880 13557788 13995136 15307180 15800960 16837898 16947235 17221120 17381056 17493920 18943232 19243312 19864064 21726320 23679040 23726129 24054140 24491488 24830080 27061760 27115576 27990272 30614360 31601920 33675796 33894470 34762112 34987840 37283917 37886464 38486624 42094745 43452640 47358080 47452258 48108280 48982976 49660160 54231152 55980544 61228720 63203840 67351592 67788940 69524224 69975680 74567834 76973248 84189490 86905280 94716160 94904516 96216560 97965952 99320320 108462304 118630645 122457440 134703184 135577880 139048448 139951360 149135668 153946496 168378980 173810560 186419585 189432320 189809032 192433120 195931904 216924608 237261290 244914880 260987419 269406368 271155760 279902720 298271336 307892992 336757960 347621120 372839170 379618064 384866240 391863808 433849216 474522580 489829760 521974838 538812736 542311520 596542672 615785984 673515920 695242240 745678340 759236128 769732480 867698432 949045160 979659520 1043949676 1077625472 1084623040 1193085344 1304937095 1347031840 1491356680 1518472256 1539464960 1735396864 1898090320 1959319040 2087899352 2155250944 2169246080 2386170688 2609874190 2694063680 2982713360 3036944512 3078929920 3796180640 4175798704 4310501888 4338492160 4772341376 5219748380 5388127360 5965426720 6073889024 7592361280 8351597408 8676984320 9544682752 10439496760 10776254720 11930853440 12147778048 15184722560 16703194816 19089365504 20878993520 21552509440 23861706880 30369445120 33406389632 41757987040 47723413760 60738890240 66812779264 83515974080 95446827520 133625558528 167031948160 334063896320 668127792640
• Sum of all divisors σ(n): 2064314875392
• Sum of proper divisors (its aliquot sum) s(n): 1396187082752
• 668127792640 is an abundant number, because the sum of its proper divisors (1396187082752) is greater than itself. Its abundance is 728059290112

Bases of 668127792640

• Binary: 1001101110001111100001010000111000000000₂
• Hexadecimal: 0x9B8F850E00
• Base-36: 8IXM1C74

Squares and roots of 668127792640

• 668127792640 squared (668127792640²) is 446394747297998838169600
• 668127792640 cubed (668127792640³) is 298248737158302568035539425951744000
• The square root of 668127792640 is 817390.8444801667
• The cube root of 668127792640 is 8742.1820460723

Scales and comparisons

• 668,127,792,640 seconds is equal to 21,244 years, 20 weeks, 4 days, 13 hours, 30 minutes, 40 seconds.
• To count from 1 to 668,127,792,640 would take you about forty-two thousand, four hundred eighty-eight 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 668127792640 cubic inches would be around 728.5 feet tall.

Recreational maths with 668127792640

• 668127792640 backwards is 046297721866
• The number of decimal digits it has is: 12
• The sum of 668127792640's digits is 58
• More coming soon!