3993990

Names of 3993990

• Cardinal: 3993990 can be written as Three million, nine hundred ninety-three thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 3.99399 × 10⁶

Factors of 3993990

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 60

Divisors of 3993990

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 7 10 11 13 14 15 19 21 22 26 30 33 35 38 39 42 49 55 57 65 66 70 77 78 91 95 98 105 110 114 130 133 143 147 154 165 182 190 195 209 210 231 245 247 266 273 285 286 294 330 385 390 399 418 429 455 462 490 494 539 546 570 627 637 665 715 735 741 770 798 858 910 931 1001 1045 1078 1155 1235 1254 1274 1330 1365 1430 1463 1470 1482 1617 1729 1862 1911 1995 2002 2090 2145 2310 2470 2695 2717 2730 2793 2926 3003 3135 3185 3234 3458 3705 3822 3990 4290 4389 4655 5005 5187 5390 5434 5586 6006 6270 6370 7007 7315 7410 8085 8151 8645 8778 9310 9555 10010 10241 10374 12103 13585 13965 14014 14630 15015 16170 16302 17290 19019 19110 20482 21021 21945 24206 25935 27170 27930 30030 30723 35035 36309 38038 40755 42042 43890 51205 51870 57057 60515 61446 70070 72618 81510 95095 102410 105105 114114 121030 133133 153615 181545 190190 210210 266266 285285 307230 363090 399399 570570 665665 798798 1331330 1996995 3993990
• Sum of all divisors σ(n): 13789440
• Sum of proper divisors (its aliquot sum) s(n): 9795450
• 3993990 is an abundant number, because the sum of its proper divisors (9795450) is greater than itself. Its abundance is 5801460

Bases of 3993990

• Binary: 1111001111000110000110₂
• Hexadecimal: 0x3CF186
• Base-36: 2DLS6

Squares and roots of 3993990

• 3993990 squared (3993990²) is 15951956120100
• 3993990 cubed (3993990³) is 63711953224118199000
• The square root of 3993990 is 1998.4969351991
• The cube root of 3993990 is 158.6605630101

Scales and comparisons

• 3,993,990 seconds is equal to 6 weeks, 4 days, 5 hours, 26 minutes, 30 seconds.
• To count from 1 to 3,993,990 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 3993990 cubic inches would be around 13.2 feet tall.

Recreational maths with 3993990

• 3993990 backwards is 0993993
• 3993990 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 3993990's digits is 42
• More coming soon!