6661620

Names of 6661620

• Cardinal: 6661620 can be written as Six million, six hundred sixty-one thousand, six hundred twenty.

Scientific notation

• Scientific notation: 6.66162 × 10⁶

Factors of 6661620

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 345

Divisors of 6661620

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 17 18 20 21 28 30 34 35 36 42 45 51 60 63 68 70 84 85 90 102 105 119 126 140 153 170 180 204 210 238 252 255 306 311 315 340 357 420 476 510 595 612 622 630 714 765 933 1020 1071 1190 1244 1260 1428 1530 1555 1785 1866 2142 2177 2380 2799 3060 3110 3570 3732 4284 4354 4665 5287 5355 5598 6220 6531 7140 8708 9330 10574 10710 10885 11196 13062 13995 15861 18660 19593 21148 21420 21770 26124 26435 27990 31722 32655 37009 39186 43540 47583 52870 55980 63444 65310 74018 78372 79305 95166 97965 105740 111027 130620 148036 158610 185045 190332 195930 222054 237915 317220 333081 370090 391860 444108 475830 555135 666162 740180 951660 1110270 1332324 1665405 2220540 3330810 6661620
• Sum of all divisors σ(n): 24530688
• Sum of proper divisors (its aliquot sum) s(n): 17869068
• 6661620 is an abundant number, because the sum of its proper divisors (17869068) is greater than itself. Its abundance is 11207448

Bases of 6661620

• Binary: 11001011010010111110100₂
• Hexadecimal: 0x65A5F4
• Base-36: 3YS50

Squares and roots of 6661620

• 6661620 squared (6661620²) is 44377181024400
• 6661620 cubed (6661620³) is 295623916655763528000
• The square root of 6661620 is 2581.0114296531
• The cube root of 6661620 is 188.1597028361

Scales and comparisons

• 6,661,620 seconds is equal to 11 weeks, 2 hours, 27 minutes.
• To count from 1 to 6,661,620 would take you about sixteen 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 6661620 cubic inches would be around 15.7 feet tall.

Recreational maths with 6661620

• 6661620 backwards is 0261666
• The number of decimal digits it has is: 7
• The sum of 6661620's digits is 27
• More coming soon!