668121018432

Names of 668121018432

• Cardinal: 668121018432 can be written as Six hundred sixty-eight billion, one hundred twenty-one million, eighteen thousand, four hundred thirty-two.

Scientific notation

• Scientific notation: 6.68121018432 × 10¹¹

Factors of 668121018432

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2624

Divisors of 668121018432

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 19 21 24 28 29 32 38 42 48 56 57 58 64 76 84 87 96 112 114 116 133 152 168 174 192 203 224 228 232 266 304 336 348 399 406 421 448 456 464 532 551 608 609 672 696 798 812 842 912 928 1064 1102 1216 1218 1263 1344 1392 1596 1624 1653 1684 1824 1856 2128 2143 2204 2436 2526 2784 2947 3192 3248 3306 3368 3648 3857 4256 4286 4408 4872 5052 5568 5894 6384 6429 6496 6612 6736 7714 7999 8512 8572 8816 8841 9744 10104 11571 11788 12209 12768 12858 12992 13224 13472 15001 15428 15998 17144 17632 17682 19488 20208 23142 23576 23997 24418 25536 25716 26448 26944 30002 30856 31996 34288 35264 35364 36627 38976 40416 40717 45003 46284 47152 47994 48836 51432 52896 55993 60004 61712 62147 63992 68576 70728 73254 80832 81434 85463 90006 92568 94304 95988 97672 102864 105792 111986 120008 122151 123424 124294 127984 137152 141456 146508 162868 167979 170926 180012 185136 186441 188608 191976 195344 205728 223972 231971 240016 244302 246848 248588 255968 256389 282912 285019 293016 325736 335958 341852 360024 370272 372882 383952 390688 411456 435029 447944 463942 480032 488604 497176 511936 512778 565824 570038 586032 651472 671916 683704 695913 720048 740544 745764 767904 781376 855057 870058 895888 902203 927884 960064 977208 994352 1025556 1140076 1172064 1180793 1302944 1305087 1343832 1367408 1391826 1440096 1491528 1535808 1623797 1710114 1740116 1791776 1804406 1855768 1954416 1988704 2051112 2280152 2344128 2361586 2605888 2610174 2687664 2706609 2734816 2783652 2880192 2983056 3247594 3420228 3480232 3542379 3583552 3608812 3711536 3908832 3977408 4102224 4560304 4723172 4871391 5220348 5375328 5413218 5469632 5567304 5966112 6315421 6495188 6840456 6960464 7084758 7217624 7423072 7817664 8204448 8265551 9120608 9446344 9742782 10440696 10750656 10826436 11134608 11932224 12630842 12990376 13680912 13920928 14169516 14435248 14846144 16408896 16531102 17141857 18241216 18892688 18946263 19485564 20881392 21652872 22269216 24796653 25261684 25980752 26163887 27361824 27841856 28339032 28870496 33062204 34283714 37785376 37892526 38971128 41762784 43305744 44538432 49593306 50523368 51425571 51961504 52327774 54723648 56678064 57740992 66124408 68567428 75570752 75785052 77942256 78491661 83525568 86611488 99186612 101046736 102851142 103923008 104655548 113356128 119992999 132248816 137134856 151570104 155884512 156983322 173222976 183147209 198373224 202093472 205702284 209311096 226712256 239985998 264497632 274269712 303140208 311769024 313966644 359978997 366294418 396746448 404186944 411404568 418622192 479971996 497113853 528995264 548539424 549441627 606280416 627933288 719957994 732588836 793492896 822809136 837244384 959943992 994227706 1097078848 1098883254 1212560832 1255866576 1439915988 1465177672 1491341559 1586985792 1645618272 1674488768 1919887984 1988455412 2197766508 2511733152 2879831976 2930355344 2982683118 3291236544 3479796971 3839775968 3976910824 4395533016 5023466304 5759663952 5860710688 5965366236 6959593942 7679551936 7953821648 8791066032 10439390913 11519327904 11721421376 11930732472 13919187884 15907643296 17582132064 20878781826 23038655808 23861464944 27838375768 31815286592 35164264128 41757563652 47722929888 55676751536 83515127304 95445859776 111353503072 167030254608 222707006144 334060509216 668121018432
• Sum of all divisors σ(n): 2206186291200
• Sum of proper divisors (its aliquot sum) s(n): 1538065272768
• 668121018432 is an abundant number, because the sum of its proper divisors (1538065272768) is greater than itself. Its abundance is 869944254336

Bases of 668121018432

• Binary: 1001101110001111000111011011000001000000₂
• Hexadecimal: 0x9B8F1DB040
• Base-36: 8IXI056O

Squares and roots of 668121018432

• 668121018432 squared (668121018432²) is 446385695270612883738624
• 668121018432 cubed (668121018432³) is 298239665337678285724269878574317568
• The square root of 668121018432 is 817386.7006698849
• The cube root of 668121018432 is 8742.1525000481

Scales and comparisons

• 668,121,018,432 seconds is equal to 21,244 years, 9 weeks, 3 days, 3 hours, 47 minutes, 12 seconds.
• To count from 1 to 668,121,018,432 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 668121018432 cubic inches would be around 728.5 feet tall.

Recreational maths with 668121018432

• 668121018432 backwards is 234810121866
• 668121018432 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 668121018432's digits is 42
• More coming soon!