40729970

Names of 40729970

• Cardinal: 40729970 can be written as Forty million, seven hundred twenty-nine thousand, nine hundred seventy.

Scientific notation

• Scientific notation: 4.072997 × 10⁷

Factors of 40729970

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 195

Divisors of 40729970

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 10 31 37 53 62 67 74 106 134 155 185 265 310 335 370 530 670 1147 1643 1961 2077 2294 2479 3286 3551 3922 4154 4958 5735 7102 8215 9805 10385 11470 12395 16430 17755 19610 20770 24790 35510 60791 76849 110081 121582 131387 153698 220162 262774 303955 384245 550405 607910 656935 768490 1100810 1313870 4072997 8145994 20364985 40729970
• Sum of all divisors σ(n): 80372736
• Sum of proper divisors (its aliquot sum) s(n): 39642766
• 40729970 is a deficient number, because the sum of its proper divisors (39642766) is less than itself. Its deficiency is 1087204

Bases of 40729970

• Binary: 10011011010111110101110010₂
• Hexadecimal: 0x26D7D72
• Base-36: O8ZG2

Squares and roots of 40729970

• 40729970 squared (40729970²) is 1658930456200900
• 40729970 cubed (40729970³) is 67568187713148970973000
• The square root of 40729970 is 6382.0036038849
• The cube root of 40729970 is 344.0630461785

Scales and comparisons

• 40,729,970 seconds is equal to 1 year, 15 weeks, 2 days, 9 hours, 52 minutes, 50 seconds.
• To count from 1 to 40,729,970 would take you about forty-nine 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 40729970 cubic inches would be around 28.7 feet tall.

Recreational maths with 40729970

• 40729970 backwards is 07992704
• The number of decimal digits it has is: 8
• The sum of 40729970's digits is 38
• More coming soon!