40405393408

Names of 40405393408

• Cardinal: 40405393408 can be written as Forty billion, four hundred five million, three hundred ninety-three thousand, four hundred eight.

Scientific notation

• Scientific notation: 4.0405393408 × 10¹⁰

Factors of 40405393408

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 747

Divisors of 40405393408

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 8 16 32 64 71 127 128 142 254 256 284 508 512 547 568 1016 1024 1094 1136 2032 2048 2188 2272 4064 4096 4376 4544 8128 8192 8752 9017 9088 16256 17504 18034 18176 32512 35008 36068 36352 38837 65024 69469 70016 72136 72704 77674 130048 138938 140032 144272 145408 155348 260096 277876 280064 288544 290816 310696 520192 555752 560128 577088 581632 621392 1040384 1111504 1120256 1154176 1242784 2223008 2240512 2308352 2485568 4446016 4481024 4616704 4932299 4971136 8892032 9233408 9864598 9942272 17784064 18466816 19729196 19884544 35568128 36933632 39458392 39769088 71136256 73867264 78916784 79538176 142272512 157833568 159076352 284545024 315667136 318152704 569090048 631334272 1262668544 2525337088 5050674176 10101348352 20202696704 40405393408
• Sum of all divisors σ(n): 82740178944
• Sum of proper divisors (its aliquot sum) s(n): 42334785536
• 40405393408 is an abundant number, because the sum of its proper divisors (42334785536) is greater than itself. Its abundance is 1929392128

Bases of 40405393408

• Binary: 100101101000010110010110000000000000₂
• Hexadecimal: 0x968596000
• Base-36: IK8BT34

Squares and roots of 40405393408

• 40405393408 squared (40405393408²) is 1632595816455249854464
• 40405393408 cubed (40405393408³) is 65965676240129330396552664973312
• The square root of 40405393408 is 201010.9285785229
• The cube root of 40405393408 is 3431.4666301463

Scales and comparisons

• 40,405,393,408 seconds is equal to 1,284 years, 39 weeks, 6 days, 23 minutes, 28 seconds.
• To count from 1 to 40,405,393,408 would take you about two thousand, five hundred sixty-nine 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 40405393408 cubic inches would be around 286 feet tall.

Recreational maths with 40405393408

• 40405393408 backwards is 80439350404
• The number of decimal digits it has is: 11
• The sum of 40405393408's digits is 40
• More coming soon!