640879166909198336

Names of 640879166909198336

• Cardinal: 640879166909198336 can be written as Six hundred forty quadrillion, eight hundred seventy-nine trillion, one hundred sixty-six billion, nine hundred nine million, one hundred ninety-eight thousand, three hundred thirty-six.

Scientific notation

• Scientific notation: 6.40879166909198336 × 10¹⁷

Factors of 640879166909198336

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 2079

Divisors of 640879166909198336

• Number of divisors d(n): 260
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 337 448 512 674 896 1024 1348 1733 1792 2048 2359 2696 3466 3584 4096 4718 5392 6932 7168 9436 10784 12131 13864 14336 18872 21568 24262 27728 28672 37744 43136 48524 55456 75488 86272 97048 110912 113569 150976 172544 194096 221824 227138 301952 345088 388192 443648 454276 584021 603904 690176 776384 794983 887296 908552 1168042 1207808 1380352 1552768 1589966 1774592 1817104 2336084 2415616 3105536 3179932 3549184 3634208 4088147 4672168 4831232 6211072 6359864 7098368 7268416 8176294 9344336 9662464 12422144 12719728 14536832 16352588 18688672 24844288 25439456 29073664 32705176 37377344 38272753 49688576 50878912 58147328 65410352 74754688 76545506 101757824 116294656 130820704 149509376 153091012 196815077 203515648 232589312 261641408 267909271 299018752 306182024 393630154 407031296 465178624 523282816 535818542 598037504 612364048 787260308 814062592 1046565632 1071637084 1196075008 1224728096 1377705539 1574520616 1628125184 2093131264 2143274168 2392150016 2449456192 2755411078 3149041232 3256250368 4186262528 4286548336 4898912384 5510822156 6298082464 8372525056 8573096672 9797824768 11021644312 12596164928 12897917761 16745050112 17146193344 19595649536 22043288624 25192329856 25795835522 34292386688 39191299072 44086577248 50384659712 51591671044 66326680949 68584773376 78382598144 88173154496 90285424327 100769319424 103183342088 132653361898 137169546752 156765196288 176346308992 180570848654 201538638848 206366684176 265306723796 274339093504 352692617984 361141697308 403077277696 412733368352 464286766643 530613447592 548678187008 705385235968 722283394616 806154555392 825466736704 928573533286 1061226895184 1097356374016 1410770471936 1444566789232 1650933473408 1857147066572 2122453790368 2821540943872 2889133578464 3301866946816 3714294133144 4244907580736 5643081887744 5778267156928 6603733893632 7428588266288 8489815161472 11556534313856 13207467787264 14857176532576 16979630322944 22352091479813 23113068627712 26414935574528 29714353065152 33959260645888 44704182959626 46226137255424 52829871149056 59428706130304 67918521291776 89408365919252 92452274510848 118857412260608 135837042583552 156464640358691 178816731838504 184904549021696 237714824521216 271674085167104 312929280717382 357633463677008 369809098043392 475429649042432 625858561434764 715266927354016 950859298084864 1251717122869528 1430533854708032 1901718596169728 2503434245739056 2861067709416064 5006868491478112 5722135418832128 10013736982956224 11444270837664256 20027473965912448 22888541675328512 40054947931824896 45777083350657024 80109895863649792 91554166701314048 160219791727299584 320439583454599168 640879166909198336
• Sum of all divisors σ(n): 1469894730676165392
• Sum of proper divisors (its aliquot sum) s(n): 829015563766967056
• 640879166909198336 is an abundant number, because the sum of its proper divisors (829015563766967056) is greater than itself. Its abundance is 188136396857768720

Bases of 640879166909198336

• Binary: 100011100100110111000011010011101111100100100011000000000000₂
• Hexadecimal: 0x8E4DC34EF923000
• Base-36: 4VACPCTK01KW

Squares and roots of 640879166909198336

• 640879166909198336 squared (640879166909198336²) is 410726106578228099435177166185168896
• 640879166909198336 cubed (640879166909198336³) is 263225805011713430776465055161900062998371764122157056
• The square root of 640879166909198336 is 800549290.7430487107
• The cube root of 640879166909198336 is 862168.3012289967

Scales and comparisons

• 640,879,166,909,198,336 seconds is equal to 20,377,975,138 years, 15 weeks, 22 hours, 38 minutes, 56 seconds.
• To count from 1 to 640,879,166,909,198,336 would take you about sixty-one billion, one hundred thirty-three million, nine hundred twenty-five thousand, four hundred fourteen 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 640879166909198336 cubic inches would be around 71847.4 feet tall.

Recreational maths with 640879166909198336

• 640879166909198336 backwards is 633891909661978046
• The number of decimal digits it has is: 18
• The sum of 640879166909198336's digits is 95
• More coming soon!