40640670

Names of 40640670

• Cardinal: 40640670 can be written as Forty million, six hundred forty thousand, six hundred seventy.

Scientific notation

• Scientific notation: 4.064067 × 10⁷

Factors of 40640670

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 21520

Divisors of 40640670

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 90 105 126 135 189 210 270 315 378 630 945 1890 21503 43006 64509 107515 129018 150521 193527 215030 301042 322545 387054 451563 580581 645090 752605 903126 967635 1161162 1354689 1505210 1935270 2257815 2709378 2902905 4064067 4515630 5805810 6773445 8128134 13546890 20320335 40640670
• Sum of all divisors σ(n): 123863040
• Sum of proper divisors (its aliquot sum) s(n): 83222370
• 40640670 is an abundant number, because the sum of its proper divisors (83222370) is greater than itself. Its abundance is 42581700

Bases of 40640670

• Binary: 10011011000010000010011110₂
• Hexadecimal: 0x26C209E
• Base-36: O72JI

Squares and roots of 40640670

• 40640670 squared (40640670²) is 1651664058048900
• 40640670 cubed (40640670³) is 67124733934026188763000
• The square root of 40640670 is 6375.0035294109
• The cube root of 40640670 is 343.8114107363

Scales and comparisons

• 40,640,670 seconds is equal to 1 year, 15 weeks, 1 day, 9 hours, 4 minutes, 30 seconds.
• To count from 1 to 40,640,670 would take you about forty-eight 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 40640670 cubic inches would be around 28.7 feet tall.

Recreational maths with 40640670

• 40640670 backwards is 07604604
• 40640670 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 40640670's digits is 27
• More coming soon!