40790640

Names of 40790640

• Cardinal: 40790640 can be written as Forty million, seven hundred ninety thousand, six hundred forty.

Scientific notation

• Scientific notation: 4.079064 × 10⁷

Factors of 40790640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 15472

Divisors of 40790640

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 80 88 110 120 132 165 176 220 240 264 330 440 528 660 880 1320 2640 15451 30902 46353 61804 77255 92706 123608 154510 169961 185412 231765 247216 309020 339922 370824 463530 509883 618040 679844 741648 849805 927060 1019766 1236080 1359688 1699610 1854120 2039532 2549415 2719376 3399220 3708240 4079064 5098830 6798440 8158128 10197660 13596880 20395320 40790640
• Sum of all divisors σ(n): 137955456
• Sum of proper divisors (its aliquot sum) s(n): 97164816
• 40790640 is an abundant number, because the sum of its proper divisors (97164816) is greater than itself. Its abundance is 56374176

Bases of 40790640

• Binary: 10011011100110101001110000₂
• Hexadecimal: 0x26E6A70
• Base-36: OAA9C

Squares and roots of 40790640

• 40790640 squared (40790640²) is 1663876311609600
• 40790640 cubed (40790640³) is 67870579631395014144000
• The square root of 40790640 is 6386.7550446217
• The cube root of 40790640 is 344.2337963577

Scales and comparisons

• 40,790,640 seconds is equal to 1 year, 15 weeks, 3 days, 2 hours, 44 minutes.
• To count from 1 to 40,790,640 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 40790640 cubic inches would be around 28.7 feet tall.

Recreational maths with 40790640

• 40790640 backwards is 04609704
• 40790640 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 40790640's digits is 30
• More coming soon!