42003990

Names of 42003990

• Cardinal: 42003990 can be written as Forty-two million, three thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 4.200399 × 10⁷

Factors of 42003990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1171

Divisors of 42003990

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 61 63 70 90 105 122 126 183 210 305 315 366 427 549 610 630 854 915 1093 1098 1281 1830 2135 2186 2562 2745 3279 3843 4270 5465 5490 6405 6558 7651 7686 9837 10930 12810 15302 16395 19215 19674 22953 32790 38255 38430 45906 49185 66673 68859 76510 98370 114765 133346 137718 200019 229530 333365 344295 400038 466711 600057 666730 688590 933422 1000095 1200114 1400133 2000190 2333555 2800266 3000285 4200399 4667110 6000570 7000665 8400798 14001330 21001995 42003990
• Sum of all divisors σ(n): 126974016
• Sum of proper divisors (its aliquot sum) s(n): 84970026
• 42003990 is an abundant number, because the sum of its proper divisors (84970026) is greater than itself. Its abundance is 42966036

Bases of 42003990

• Binary: 10100000001110111000010110₂
• Hexadecimal: 0x280EE16
• Base-36: P0AHI

Squares and roots of 42003990

• 42003990 squared (42003990²) is 1764335175920100
• 42003990 cubed (42003990³) is 74109117085996121199000
• The square root of 42003990 is 6481.0485262803
• The cube root of 42003990 is 347.6136715579

Scales and comparisons

• 42,003,990 seconds is equal to 1 year, 17 weeks, 3 days, 3 hours, 46 minutes, 30 seconds.
• To count from 1 to 42,003,990 would take you about two years!

  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 42003990 cubic inches would be around 29 feet tall.

Recreational maths with 42003990

• 42003990 backwards is 09930024
• The number of decimal digits it has is: 8
• The sum of 42003990's digits is 27
• More coming soon!