6400420650

Names of 6400420650

• Cardinal: 6400420650 can be written as Six billion, four hundred million, four hundred twenty thousand, six hundred fifty.

Scientific notation

• Scientific notation: 6.40042065 × 10⁹

Factors of 6400420650

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1094112

Divisors of 6400420650

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 25 26 30 39 45 50 65 75 78 90 117 130 150 195 225 234 325 390 450 585 650 975 1170 1950 2925 5850 1094089 2188178 3282267 5470445 6564534 9846801 10940890 14223157 16411335 19693602 27352225 28446314 32822670 42669471 49234005 54704450 71115785 82056675 85338942 98468010 128008413 142231570 164113350 213347355 246170025 256016826 355578925 426694710 492340050 640042065 711157850 1066736775 1280084130 2133473550 3200210325 6400420650
• Sum of all divisors σ(n): 18518567340
• Sum of proper divisors (its aliquot sum) s(n): 12118146690
• 6400420650 is an abundant number, because the sum of its proper divisors (12118146690) is greater than itself. Its abundance is 5717726040

Bases of 6400420650

• Binary: 101111101011111101010101100101010₂
• Hexadecimal: 0x17D7EAB2A
• Base-36: 2XUN86I

Squares and roots of 6400420650

• 6400420650 squared (6400420650²) is 40965384496946422500
• 6400420650 cubed (6400420650³) is 262195692869445744512624625000
• The square root of 6400420650 is 80002.6290193017
• The cube root of 6400420650 is 1856.6762093111

Scales and comparisons

• 6,400,420,650 seconds is equal to 203 years, 26 weeks, 4 days, 22 hours, 37 minutes, 30 seconds.
• To count from 1 to 6,400,420,650 would take you about four hundred seven years!

  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 6400420650 cubic inches would be around 154.7 feet tall.

Recreational maths with 6400420650

• 6400420650 backwards is 0560240046
• The number of decimal digits it has is: 10
• The sum of 6400420650's digits is 27
• More coming soon!