39420990

Names of 39420990

• Cardinal: 39420990 can be written as Thirty-nine million, four hundred twenty thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 3.942099 × 10⁷

Factors of 39420990

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1294

Divisors of 39420990

• 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 49 63 70 90 98 105 126 147 210 245 294 315 343 441 490 630 686 735 882 1029 1277 1470 1715 2058 2205 2554 3087 3430 3831 4410 5145 6174 6385 7662 8939 10290 11493 12770 15435 17878 19155 22986 26817 30870 38310 44695 53634 57465 62573 80451 89390 114930 125146 134085 160902 187719 268170 312865 375438 402255 438011 563157 625730 804510 876022 938595 1126314 1314033 1877190 2190055 2628066 2815785 3942099 4380110 5631570 6570165 7884198 13140330 19710495 39420990
• Sum of all divisors σ(n): 119620800
• Sum of proper divisors (its aliquot sum) s(n): 80199810
• 39420990 is an abundant number, because the sum of its proper divisors (80199810) is greater than itself. Its abundance is 40778820

Bases of 39420990

• Binary: 10010110011000010000111110₂
• Hexadecimal: 0x259843E
• Base-36: NGXFI

Squares and roots of 39420990

• 39420990 squared (39420990²) is 1554014452580100
• 39420990 cubed (39420990³) is 61260788195015596299000
• The square root of 39420990 is 6278.6137004915
• The cube root of 39420990 is 340.3370072559

Scales and comparisons

• 39,420,990 seconds is equal to 1 year, 13 weeks, 1 day, 6 hours, 16 minutes, 30 seconds.
• To count from 1 to 39,420,990 would take you about forty-five 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 39420990 cubic inches would be around 28.4 feet tall.

Recreational maths with 39420990

• 39420990 backwards is 09902493
• The number of decimal digits it has is: 8
• The sum of 39420990's digits is 36
• More coming soon!