64388968128

Names of 64388968128

• Cardinal: 64388968128 can be written as Sixty-four billion, three hundred eighty-eight million, nine hundred sixty-eight thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 6.4388968128 × 10¹⁰

Factors of 64388968128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1432

Divisors of 64388968128

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 31 32 36 48 62 64 72 89 93 96 124 144 178 186 192 248 267 279 288 356 372 496 534 558 576 712 744 801 961 992 1068 1116 1307 1424 1488 1602 1922 1984 2136 2232 2614 2759 2848 2883 2976 3204 3844 3921 4272 4464 5228 5518 5696 5766 5952 6408 7688 7842 8277 8544 8649 8928 10456 11036 11532 11763 12816 15376 15684 16554 17088 17298 17856 20912 22072 23064 23526 24831 25632 30752 31368 33108 34596 40517 41824 44144 46128 47052 49662 51264 61504 62736 66216 69192 81034 83648 85529 88288 92256 94104 99324 116323 121551 125472 132432 138384 162068 171058 176576 184512 188208 198648 232646 243102 250944 256587 264864 276768 324136 342116 348969 364653 376416 397296 465292 486204 513174 529728 553536 648272 684232 697938 729306 752832 769761 794592 930584 972408 1026348 1046907 1256027 1296544 1368464 1395876 1458612 1539522 1589184 1861168 1944816 2052696 2093814 2512054 2593088 2736928 2791752 2917224 3079044 3606013 3722336 3768081 3889632 4105392 4187628 5024108 5473856 5583504 5834448 6158088 7212026 7444672 7536162 7779264 8210784 8375256 10048216 10818039 11167008 11304243 11668896 12316176 14424052 15072324 16421568 16750512 20096432 21636078 22334016 22608486 23337792 24632352 28848104 30144648 32454117 33501024 40192864 43272156 45216972 49264704 57696208 60289296 64908234 67002048 80385728 86544312 90433944 111786403 115392416 120578592 129816468 173088624 180867888 223572806 230784832 241157184 259632936 335359209 346177248 361735776 447145612 519265872 670718418 692354496 723471552 894291224 1006077627 1038531744 1341436836 1788582448 2012155254 2077063488 2682873672 3577164896 4024310508 5365747344 7154329792 8048621016 10731494688 16097242032 21462989376 32194484064 64388968128
• Sum of all divisors σ(n): 192995229960
• Sum of proper divisors (its aliquot sum) s(n): 128606261832
• 64388968128 is an abundant number, because the sum of its proper divisors (128606261832) is greater than itself. Its abundance is 64217293704

Bases of 64388968128

• Binary: 111011111101111000011010111011000000₂
• Hexadecimal: 0xEFDE1AEC0
• Base-36: TKVJ1S0

Squares and roots of 64388968128

• 64388968128 squared (64388968128²) is 4145939216588599824384
• 64388968128 cubed (64388968128³) is 266952748077548642980407773233152
• The square root of 64388968128 is 253749.8140452521
• The cube root of 64388968128 is 4008.0871411845

Scales and comparisons

• 64,388,968,128 seconds is equal to 2,047 years, 19 weeks, 1 day, 16 hours, 28 minutes, 48 seconds.
• To count from 1 to 64,388,968,128 would take you about four thousand and ninety-four 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 64388968128 cubic inches would be around 334 feet tall.

Recreational maths with 64388968128

• 64388968128 backwards is 82186988346
• The number of decimal digits it has is: 11
• The sum of 64388968128's digits is 63
• More coming soon!