668513731968

Names of 668513731968

• Cardinal: 668513731968 can be written as Six hundred sixty-eight billion, five hundred thirteen million, seven hundred thirty-one thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 6.68513731968 × 10¹¹

Factors of 668513731968

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 518

Divisors of 668513731968

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 43 48 64 72 86 96 97 128 129 144 172 192 194 258 288 291 344 373 384 387 388 516 576 582 688 746 774 776 873 1032 1119 1152 1164 1376 1492 1548 1552 1746 2064 2238 2328 2752 2984 3096 3104 3357 3492 4128 4171 4476 4656 5504 5968 6192 6208 6714 6984 8256 8342 8952 9312 11936 12384 12416 12513 13428 13968 16039 16512 16684 17904 18624 23872 24768 25026 26856 27936 32078 33368 35808 36181 37248 37539 47744 48117 49536 50052 53712 55872 64156 66736 71616 72362 75078 96234 100104 107424 108543 111744 128312 133472 139129 143232 144351 144724 150156 192468 200208 214848 217086 256624 266944 278258 288702 289448 300312 325629 384936 400416 417387 429696 434172 513248 533888 556516 577404 578896 600624 651258 769872 800832 834774 868344 1026496 1113032 1154808 1157792 1201248 1252161 1302516 1539744 1555783 1601664 1669548 1736688 2052992 2226064 2309616 2315584 2402496 2504322 2605032 3079488 3111566 3339096 3473376 4452128 4619232 4631168 4667349 4804992 5008644 5210064 5982547 6158976 6223132 6678192 6946752 8904256 9238464 9334698 10017288 10420128 11965094 12446264 13356384 13495513 13893504 14002047 17808512 17947641 18476928 18669396 20034576 20840256 23930188 24892528 26712768 26991026 28004094 35895282 37338792 40069152 40486539 41680512 47860376 49785056 53425536 53842923 53982052 56008188 71790564 74677584 80138304 80973078 95720752 99570112 107685846 107964104 112016376 121459617 143581128 149355168 160276608 161946156 191441504 199140224 215371692 215928208 224032752 242919234 287162256 298710336 323892312 382883008 430743384 431856416 448065504 485838468 574324512 580307059 597420672 647784624 765766016 861486768 863712832 896131008 971676936 1148649024 1160614118 1295569248 1722973536 1727425664 1740921177 1792262016 1943353872 2297298048 2321228236 2591138496 3445947072 3481842354 3886707744 4642456472 5182276992 5222763531 6891894144 6963684708 7773415488 9284912944 10445527062 13927369416 15546830976 18569825888 20891054124 27854738832 37139651776 41782108248 55709477664 74279303552 83564216496 111418955328 167128432992 222837910656 334256865984 668513731968
• Sum of all divisors σ(n): 1994094942840
• Sum of proper divisors (its aliquot sum) s(n): 1325581210872
• 668513731968 is an abundant number, because the sum of its proper divisors (1325581210872) is greater than itself. Its abundance is 657067478904

Bases of 668513731968

• Binary: 1001101110100110100001100000010110000000₂
• Hexadecimal: 0x9BA6860580
• Base-36: 8J3ZTCW0

Squares and roots of 668513731968

• 668513731968 squared (668513731968²) is 446910609829782945153024
• 668513731968 cubed (668513731968³) is 298765879633402941899646331080671232
• The square root of 668513731968 is 817626.8904384199
• The cube root of 668513731968 is 8743.8650087545

Scales and comparisons

• 668,513,731,968 seconds is equal to 21,256 years, 34 weeks, 5 days, 10 hours, 52 minutes, 48 seconds.
• To count from 1 to 668,513,731,968 would take you about forty-two thousand, five hundred thirteen 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 668513731968 cubic inches would be around 728.7 feet tall.

Recreational maths with 668513731968

• 668513731968 backwards is 869137315866
• The number of decimal digits it has is: 12
• The sum of 668513731968's digits is 63
• More coming soon!