640127678448

Names of 640127678448

• Cardinal: 640127678448 can be written as Six hundred forty billion, one hundred twenty-seven million, six hundred seventy-eight thousand, four hundred forty-eight.

Scientific notation

• Scientific notation: 6.40127678448 × 10¹¹

Factors of 640127678448

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 20048

Divisors of 640127678448

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 48 61 122 181 183 244 362 366 488 543 724 732 976 1086 1448 1464 2172 2896 2928 3721 4344 7442 8688 11041 11163 14884 19801 22082 22326 29768 33123 39602 44164 44652 59403 59536 66246 79204 88328 89304 118806 132492 158408 176656 178608 237612 264984 316816 475224 529968 673501 950448 1207861 1347002 2020503 2415722 2694004 3583981 3623583 4041006 4831444 5388008 7167962 7247166 8082012 9662888 10751943 10776016 14335924 14494332 16164024 19325776 21503886 28671848 28988664 32328048 43007772 57343696 57977328 73679521 86015544 147359042 172031088 218622841 221038563 294718084 437245682 442077126 589436168 655868523 874491364 884154252 1178872336 1311737046 1748982728 1768308504 2623474092 3497965456 3536617008 5246948184 10493896368 13335993301 26671986602 40007979903 53343973204 80015959806 106687946408 160031919612 213375892816 320063839224 640127678448
• Sum of all divisors σ(n): 1690590680688
• Sum of proper divisors (its aliquot sum) s(n): 1050463002240
• 640127678448 is an abundant number, because the sum of its proper divisors (1050463002240) is greater than itself. Its abundance is 410335323792

Bases of 640127678448

• Binary: 1001010100001010100101010011011111110000₂
• Hexadecimal: 0x950A9537F0
• Base-36: 862JHPTC

Squares and roots of 640127678448

• 640127678448 squared (640127678448²) is 409763444715226083688704
• 640127678448 cubed (640127678448³) is 262300922578413067429105051841851392
• The square root of 640127678448 is 800079.7950504687
• The cube root of 640127678448 is 8618.3117946845

Scales and comparisons

• 640,127,678,448 seconds is equal to 20,354 years, 4 weeks, 1 day, 4 hours, 48 seconds.
• To count from 1 to 640,127,678,448 would take you about forty thousand, seven hundred 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 640127678448 cubic inches would be around 718.2 feet tall.

Recreational maths with 640127678448

• 640127678448 backwards is 844876721046
• The number of decimal digits it has is: 12
• The sum of 640127678448's digits is 57
• More coming soon!