39996990

Names of 39996990

• Cardinal: 39996990 can be written as Thirty-nine million, nine hundred ninety-six thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 3.999699 × 10⁷

Factors of 39996990

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 88

Divisors of 39996990

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 67 81 90 99 110 134 135 162 165 198 201 270 297 330 335 402 405 495 594 603 670 737 810 891 990 1005 1206 1474 1485 1782 1809 2010 2211 2970 3015 3618 3685 4422 4455 4489 5427 6030 6633 7370 8910 8978 9045 10854 11055 13266 13467 18090 19899 22110 22445 26934 27135 33165 39798 40401 44890 49379 54270 59697 66330 67335 80802 98758 99495 119394 121203 134670 148137 198990 202005 242406 246895 296274 298485 363609 404010 444411 493790 596970 606015 727218 740685 888822 1212030 1333233 1481370 1818045 2222055 2666466 3636090 3999699 4444110 6666165 7999398 13332330 19998495 39996990
• Sum of all divisors σ(n): 119101752
• Sum of proper divisors (its aliquot sum) s(n): 79104762
• 39996990 is an abundant number, because the sum of its proper divisors (79104762) is greater than itself. Its abundance is 39107772

Bases of 39996990

• Binary: 10011000100100111000111110₂
• Hexadecimal: 0x2624E3E
• Base-36: NT9VI

Squares and roots of 39996990

• 39996990 squared (39996990²) is 1599759209060100
• 39996990 cubed (39996990³) is 63985553087184729099000
• The square root of 39996990 is 6324.3173544661
• The cube root of 39996990 is 341.9866107411

Scales and comparisons

• 39,996,990 seconds is equal to 1 year, 14 weeks, 22 hours, 16 minutes, 30 seconds.
• To count from 1 to 39,996,990 would take you about forty-seven 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 39996990 cubic inches would be around 28.5 feet tall.

Recreational maths with 39996990

• 39996990 backwards is 09969993
• 39996990 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 39996990's digits is 54
• More coming soon!