668981831616

Names of 668981831616

• Cardinal: 668981831616 can be written as Six hundred sixty-eight billion, nine hundred eighty-one million, eight hundred thirty-one thousand, six hundred sixteen.

Scientific notation

• Scientific notation: 6.68981831616 × 10¹¹

Factors of 668981831616

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 424395

Divisors of 668981831616

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 17 18 21 23 24 28 32 34 36 42 46 48 51 56 63 64 68 69 72 84 92 96 102 112 119 126 136 138 144 153 161 168 184 192 204 207 224 238 252 272 276 288 306 322 336 357 368 391 408 414 448 476 483 504 544 552 576 612 644 672 714 736 782 816 828 952 966 1008 1071 1088 1104 1173 1224 1288 1344 1428 1449 1472 1564 1632 1656 1904 1932 2016 2142 2208 2346 2448 2576 2737 2856 2898 3128 3264 3312 3519 3808 3864 4032 4284 4416 4692 4896 5152 5474 5712 5796 6256 6624 7038 7616 7728 8211 8568 9384 9792 10304 10948 11424 11592 12512 13248 14076 15456 16422 17136 18768 21896 22848 23184 24633 25024 28152 30912 32844 34272 37536 43792 46368 49266 56304 65688 68544 75072 87584 92736 98532 112608 131376 175168 197064 225216 262752 394128 424343 525504 788256 848686 1273029 1576512 1697372 2546058 2970401 3394744 3819087 5092116 5940802 6789488 7213831 7638174 8911203 9759889 10184232 11881604 13578976 14427662 15276348 17822406 19519778 20368464 21641493 23763208 26733609 27157952 28855324 29279667 30552696 35644812 39039556 40736928 43282986 47526416 50496817 53467218 57710648 58559334 61105392 64924479 68319223 71289624 78079112 81473856 86565972 87839001 95052832 100993634 106934436 115421296 117118668 122210784 129848958 136638446 142579248 151490451 156158224 165918113 173131944 175678002 190105664 201987268 204957669 213868872 230842592 234237336 244421568 259697916 273276892 285158496 302980902 312316448 331836226 346263888 351356004 403974536 409915338 427737744 454471353 461685184 468474672 497754339 519395832 546553784 570316992 605961804 614873007 624632896 663672452 692527776 702712008 807949072 819830676 855475488 908942706 936949344 995508678 1038791664 1093107568 1161426791 1211923608 1229746014 1327344904 1385055552 1405424016 1493263017 1615898144 1639661352 1710950976 1817885412 1873898688 1991017356 2077583328 2186215136 2322853582 2423847216 2459492028 2654689808 2810848032 2986526034 3231796288 3279322704 3484280373 3635770824 3982034712 4155166656 4372430272 4645707164 4847694432 4918984056 5309379616 5621696064 5973052068 6558645408 6968560746 7271541648 7964069424 9291414328 9695388864 9837968112 10452841119 10618759232 11946104136 13117290816 13937121492 14543083296 15928138848 18582828656 19675936224 20905682238 23892208272 27874242984 29086166592 31856277696 37165657312 39351872448 41811364476 47784416544 55748485968 74331314624 83622728952 95568833088 111496971936 167245457904 222993943872 334490915808 668981831616
• Sum of all divisors σ(n): 2421245758464
• Sum of proper divisors (its aliquot sum) s(n): 1752263926848
• 668981831616 is an abundant number, because the sum of its proper divisors (1752263926848) is greater than itself. Its abundance is 1083282095232

Bases of 668981831616

• Binary: 1001101111000010011011001010011111000000₂
• Hexadecimal: 0x9BC26CA7C0
• Base-36: 8JBQICW0

Squares and roots of 668981831616

• 668981831616 squared (668981831616²) is 447536691032298177171456
• 668981831616 cubed (668981831616³) is 299393915282150716378018712953552896
• The square root of 668981831616 is 817913.0953933921
• The cube root of 668981831616 is 8745.9053783035

Scales and comparisons

• 668,981,831,616 seconds is equal to 21,271 years, 28 weeks, 5 days, 6 hours, 33 minutes, 36 seconds.
• To count from 1 to 668,981,831,616 would take you about forty-two thousand, five hundred forty-three 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 668981831616 cubic inches would be around 728.8 feet tall.

Recreational maths with 668981831616

• 668981831616 backwards is 616138189866
• 668981831616 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 668981831616's digits is 63
• More coming soon!