40438393856

Names of 40438393856

• Cardinal: 40438393856 can be written as Forty billion, four hundred thirty-eight million, three hundred ninety-three thousand, eight hundred fifty-six.

Scientific notation

• Scientific notation: 4.0438393856 × 10¹⁰

Factors of 40438393856

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 115142

Divisors of 40438393856

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 256 343 392 448 512 686 784 896 1024 1372 1568 1792 2744 3136 3584 5488 6272 7168 10976 12544 21952 25088 43904 50176 87808 115133 175616 230266 351232 460532 805931 921064 1611862 1842128 3223724 3684256 5641517 6447448 7368512 11283034 12894896 14737024 22566068 25789792 29474048 39490619 45132136 51579584 58948096 78981238 90264272 103159168 117896192 157962476 180528544 206318336 315924952 361057088 412636672 631849904 722114176 825273344 1263699808 1444228352 2527399616 2888456704 5054799232 5776913408 10109598464 20219196928 40438393856
• Sum of all divisors σ(n): 94271719200
• Sum of proper divisors (its aliquot sum) s(n): 53833325344
• 40438393856 is an abundant number, because the sum of its proper divisors (53833325344) is greater than itself. Its abundance is 13394931488

Bases of 40438393856

• Binary: 100101101010010100001110110000000000₂
• Hexadecimal: 0x96A50EC00
• Base-36: IKRZ4E8

Squares and roots of 40438393856

• 40438393856 squared (40438393856²) is 1635263697652978548736
• 40438393856 cubed (40438393856³) is 66127437464110049365305658966016
• The square root of 40438393856 is 201092.9980282755
• The cube root of 40438393856 is 3432.4005741205

Scales and comparisons

• 40,438,393,856 seconds is equal to 1,285 years, 42 weeks, 2 days, 23 hours, 10 minutes, 56 seconds.
• To count from 1 to 40,438,393,856 would take you about two thousand, five hundred seventy-one 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 40438393856 cubic inches would be around 286 feet tall.

Recreational maths with 40438393856

• 40438393856 backwards is 65839383404
• The number of decimal digits it has is: 11
• The sum of 40438393856's digits is 53
• More coming soon!