668405639616

Names of 668405639616

• Cardinal: 668405639616 can be written as Six hundred sixty-eight billion, four hundred five million, six hundred thirty-nine thousand, six hundred sixteen.

Scientific notation

• Scientific notation: 6.68405639616 × 10¹¹

Factors of 668405639616

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1642

Divisors of 668405639616

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 8 11 12 13 16 22 24 26 32 33 39 41 44 48 52 64 66 78 82 88 96 104 123 132 143 156 164 176 192 208 246 264 286 312 328 352 416 429 451 492 528 533 572 624 631 656 704 832 858 902 941 984 1056 1066 1144 1248 1262 1312 1353 1599 1716 1804 1882 1893 1968 2112 2132 2288 2496 2524 2624 2706 2823 3198 3432 3608 3764 3786 3936 4264 4576 5048 5412 5646 5863 6396 6864 6941 7216 7528 7572 7872 8203 8528 9152 10096 10351 10824 11292 11726 12233 12792 13728 13882 14432 15056 15144 16406 17056 17589 20192 20702 20823 21648 22584 23452 24466 24609 25584 25871 27456 27764 28864 30112 30288 31053 32812 34112 35178 36699 38581 40384 41404 41646 43296 45168 46904 48932 49218 51168 51742 55528 60224 60576 62106 65624 70356 73398 77162 77613 82808 83292 86592 90233 90336 93808 97864 98436 102336 103484 111056 115743 121152 124212 131248 134563 140712 146796 154324 155226 165616 166584 180466 180672 187616 195728 196872 206968 222112 231486 248424 262496 269126 270699 281424 284581 293592 308648 310452 331232 333168 336323 360932 375232 391456 393744 403689 413936 424391 444224 462972 496848 501553 524992 538252 541398 562848 569162 587184 593771 617296 620904 662464 666336 672646 721864 782912 787488 807378 827872 848782 853743 925944 993696 1003106 1008969 1076504 1082796 1125696 1138324 1174368 1187542 1234592 1241808 1273173 1332672 1345292 1443728 1504659 1574976 1614756 1655744 1697564 1707486 1781313 1851888 1987392 2006212 2017938 2153008 2165592 2276648 2348736 2375084 2469184 2483616 2546346 2690584 2887456 3009318 3229512 3395128 3414972 3562626 3699553 3703776 4012424 4035876 4306016 4331184 4553296 4750168 4967232 5092692 5381168 5517083 5774912 6018636 6459024 6531481 6790256 6829944 7125252 7399106 7407552 7719023 8024848 8071752 8612032 8662368 9106592 9500336 10185384 10762336 11034166 11098659 12037272 12918048 13062962 13580512 13659888 14250504 14798212 15438046 16049696 16143504 16551249 17324736 18213184 19000672 19594443 20370768 21524672 22068332 22197318 23157069 24074544 24344611 25836096 26125924 27161024 27319776 28501008 29596424 30876092 32099392 32287008 33102498 38001344 39188886 40741536 44136664 44394636 46314138 48149088 48689222 52251848 54639552 57002016 59192848 61752184 64574016 66204996 73033833 78377772 81483072 84909253 88273328 88789272 92628276 96298176 97378444 104503696 114004032 118385696 123504368 132409992 146067666 156755544 169818506 176546656 177578544 185256552 194756888 209007392 236771392 247008736 254727759 264819984 267790721 292135332 313511088 316479943 339637012 353093312 355157088 370513104 389513776 418014784 494017472 509455518 529639968 535581442 584270664 627022176 632959886 679274024 710314176 741026208 779027552 803372163 949439829 1018911036 1059279936 1071162884 1168541328 1254044352 1265919772 1358548048 1482052416 1558055104 1606744326 1898879658 2037822072 2142325768 2337082656 2531839544 2717096096 3213488652 3481279373 3797759316 4075644144 4284651536 4674165312 5063679088 5434192192 6426977304 6962558746 7595518632 8151288288 8569303072 10127358176 10443838119 12853954608 13925117492 15191037264 16302576576 17138606144 20254716352 20887676238 25707909216 27850234984 30382074528 41775352476 51415818432 55700469968 60764149056 83550704952 111400939936 167101409904 222801879872 334202819808 668405639616
• Sum of all divisors σ(n): 2133979610112
• Sum of proper divisors (its aliquot sum) s(n): 1465573970496
• 668405639616 is an abundant number, because the sum of its proper divisors (1465573970496) is greater than itself. Its abundance is 797168330880

Bases of 668405639616

• Binary: 1001101110100000000101001010100111000000₂
• Hexadecimal: 0x9BA014A9C0
• Base-36: 8J27GKAO

Squares and roots of 668405639616

• 668405639616 squared (668405639616²) is 446766099070474068627456
• 668405639616 cubed (668405639616³) is 298620980207945442901276606898896896
• The square root of 668405639616 is 817560.7864960257
• The cube root of 668405639616 is 8743.3937165761

Scales and comparisons

• 668,405,639,616 seconds is equal to 21,253 years, 12 weeks, 9 hours, 13 minutes, 36 seconds.
• To count from 1 to 668,405,639,616 would take you about forty-two thousand, five hundred six 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 668405639616 cubic inches would be around 728.6 feet tall.

Recreational maths with 668405639616

• 668405639616 backwards is 616936504866
• The number of decimal digits it has is: 12
• The sum of 668405639616's digits is 60
• More coming soon!