40140640

Names of 40140640

• Cardinal: 40140640 can be written as Forty million, one hundred forty thousand, six hundred forty.

Scientific notation

• Scientific notation: 4.014064 × 10⁷

Factors of 40140640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 288

Divisors of 40140640

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 16 20 29 32 40 41 58 80 82 116 145 160 164 205 211 232 290 328 410 422 464 580 656 820 844 928 1055 1160 1189 1312 1640 1688 2110 2320 2378 3280 3376 4220 4640 4756 5945 6119 6560 6752 8440 8651 9512 11890 12238 16880 17302 19024 23780 24476 30595 33760 34604 38048 43255 47560 48952 61190 69208 86510 95120 97904 122380 138416 173020 190240 195808 244760 250879 276832 346040 489520 501758 692080 979040 1003516 1254395 1384160 2007032 2508790 4014064 5017580 8028128 10035160 20070320 40140640
• Sum of all divisors σ(n): 100971360
• Sum of proper divisors (its aliquot sum) s(n): 60830720
• 40140640 is an abundant number, because the sum of its proper divisors (60830720) is greater than itself. Its abundance is 20690080

Bases of 40140640

• Binary: 10011001000111111101100000₂
• Hexadecimal: 0x2647F60
• Base-36: NWCPS

Squares and roots of 40140640

• 40140640 squared (40140640²) is 1611270979609600
• 40140640 cubed (40140640³) is 64677448334956294144000
• The square root of 40140640 is 6335.6641325121
• The cube root of 40140640 is 342.3955388535

Scales and comparisons

• 40,140,640 seconds is equal to 1 year, 14 weeks, 2 days, 14 hours, 10 minutes, 40 seconds.
• To count from 1 to 40,140,640 would take you about forty-seven weeks!

  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 40140640 cubic inches would be around 28.5 feet tall.

Recreational maths with 40140640

• 40140640 backwards is 04604104
• The number of decimal digits it has is: 8
• The sum of 40140640's digits is 19
• More coming soon!