40685820

Names of 40685820

• Cardinal: 40685820 can be written as Forty million, six hundred eighty-five thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 4.068582 × 10⁷

Factors of 40685820

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1417

Divisors of 40685820

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 73 84 105 140 146 210 219 292 365 420 438 511 730 876 1022 1095 1327 1460 1533 2044 2190 2555 2654 3066 3981 4380 5110 5308 6132 6635 7665 7962 9289 10220 13270 15330 15924 18578 19905 26540 27867 30660 37156 39810 46445 55734 79620 92890 96871 111468 139335 185780 193742 278670 290613 387484 484355 557340 581226 678097 968710 1162452 1356194 1453065 1937420 2034291 2712388 2906130 3390485 4068582 5812260 6780970 8137164 10171455 13561940 20342910 40685820
• Sum of all divisors σ(n): 132077568
• Sum of proper divisors (its aliquot sum) s(n): 91391748
• 40685820 is an abundant number, because the sum of its proper divisors (91391748) is greater than itself. Its abundance is 50705928

Bases of 40685820

• Binary: 10011011001101000011111100₂
• Hexadecimal: 0x26CD0FC
• Base-36: O81DO

Squares and roots of 40685820

• 40685820 squared (40685820²) is 1655335949072400
• 40685820 cubed (40685820³) is 67348700463488833368000
• The square root of 40685820 is 6378.5437209445
• The cube root of 40685820 is 343.9386834105

Scales and comparisons

• 40,685,820 seconds is equal to 1 year, 15 weeks, 1 day, 21 hours, 37 minutes.
• To count from 1 to 40,685,820 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 40685820 cubic inches would be around 28.7 feet tall.

Recreational maths with 40685820

• 40685820 backwards is 02858604
• The number of decimal digits it has is: 8
• The sum of 40685820's digits is 33
• More coming soon!