3995940

Names of 3995940

• Cardinal: 3995940 can be written as Three million, nine hundred ninety-five thousand, nine hundred forty.

Scientific notation

• Scientific notation: 3.99594 × 10⁶

Factors of 3995940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 179

Divisors of 3995940

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 10 12 13 15 20 26 30 39 47 52 60 65 78 94 109 130 141 156 188 195 218 235 260 282 327 390 436 470 545 564 611 654 705 780 940 1090 1222 1308 1410 1417 1635 1833 2180 2444 2820 2834 3055 3270 3666 4251 5123 5668 6110 6540 7085 7332 8502 9165 10246 12220 14170 15369 17004 18330 20492 21255 25615 28340 30738 36660 42510 51230 61476 66599 76845 85020 102460 133198 153690 199797 266396 307380 332995 399594 665990 799188 998985 1331980 1997970 3995940
• Sum of all divisors σ(n): 12418560
• Sum of proper divisors (its aliquot sum) s(n): 8422620
• 3995940 is an abundant number, because the sum of its proper divisors (8422620) is greater than itself. Its abundance is 4426680

Bases of 3995940

• Binary: 1111001111100100100100₂
• Hexadecimal: 0x3CF924
• Base-36: 2DNAC

Squares and roots of 3995940

• 3995940 squared (3995940²) is 15967536483600
• 3995940 cubed (3995940³) is 63805317736276584000
• The square root of 3995940 is 1998.9847423129
• The cube root of 3995940 is 158.6863799465

Scales and comparisons

• 3,995,940 seconds is equal to 6 weeks, 4 days, 5 hours, 59 minutes.
• To count from 1 to 3,995,940 would take you about nine 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 3995940 cubic inches would be around 13.2 feet tall.

Recreational maths with 3995940

• 3995940 backwards is 0495993
• 3995940 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 3995940's digits is 39
• More coming soon!