6418728540

Names of 6418728540

• Cardinal: 6418728540 can be written as Six billion, four hundred eighteen million, seven hundred twenty-eight thousand, five hundred forty.

Scientific notation

• Scientific notation: 6.41872854 × 10⁹

Factors of 6418728540

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 727764

Divisors of 6418728540

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 49 60 63 70 84 90 98 105 126 140 147 180 196 210 245 252 294 315 420 441 490 588 630 735 882 980 1260 1470 1764 2205 2940 4410 8820 727747 1455494 2183241 2910988 3638735 4366482 5094229 6549723 7277470 8732964 10188458 10916205 13099446 14554940 15282687 20376916 21832410 25471145 26198892 30565374 32748615 35659603 43664820 45848061 50942290 61130748 65497230 71319206 76413435 91696122 101884580 106978809 130994460 142638412 152826870 178298015 183392244 213957618 229240305 305653740 320936427 356596030 427915236 458480610 534894045 641872854 713192060 916961220 1069788090 1283745708 1604682135 2139576180 3209364270 6418728540
• Sum of all divisors σ(n): 22648973256
• Sum of proper divisors (its aliquot sum) s(n): 16230244716
• 6418728540 is an abundant number, because the sum of its proper divisors (16230244716) is greater than itself. Its abundance is 9811516176

Bases of 6418728540

• Binary: 101111110100101100000011001011100₂
• Hexadecimal: 0x17E96065C
• Base-36: 2Y5JMN0

Squares and roots of 6418728540

• 6418728540 squared (6418728540²) is 41200076070210531600
• 6418728540 cubed (6418728540³) is 264452104122031382989491864000
• The square root of 6418728540 is 80116.9678657399
• The cube root of 6418728540 is 1858.4448151979

Scales and comparisons

• 6,418,728,540 seconds is equal to 204 years, 4 weeks, 6 days, 20 hours, 9 minutes.
• To count from 1 to 6,418,728,540 would take you about four hundred eight 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 6418728540 cubic inches would be around 154.9 feet tall.

Recreational maths with 6418728540

• 6418728540 backwards is 0458278146
• 6418728540 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 6418728540's digits is 45
• More coming soon!