2640428820

Names of 2640428820

• Cardinal: 2640428820 can be written as Two billion, six hundred forty million, four hundred twenty-eight thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 2.64042882 × 10⁹

Factors of 2640428820

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7334

Divisors of 2640428820

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 743 1486 2229 2972 3715 4458 6581 6687 7430 8916 11145 13162 13374 14860 19743 20061 22290 26324 26748 32905 33435 39486 40122 44580 59229 65810 66870 78972 80244 98715 100305 118458 131620 133740 177687 197430 200610 236916 296145 355374 394860 401220 592290 710748 888435 1184580 1776870 3553740 4889683 9779366 14669049 19558732 24448415 29338098 44007147 48896830 58676196 73345245 88014294 97793660 132021441 146690490 176028588 220035735 264042882 293380980 440071470 528085764 660107205 880142940 1320214410 2640428820
• Sum of all divisors σ(n): 8226973440
• Sum of proper divisors (its aliquot sum) s(n): 5586544620
• 2640428820 is an abundant number, because the sum of its proper divisors (5586544620) is greater than itself. Its abundance is 2946115800

Bases of 2640428820

• Binary: 10011101011000011011111100010100₂
• Hexadecimal: 0x9D61BF14
• Base-36: 17O1JX0

Squares and roots of 2640428820

• 2640428820 squared (2640428820²) is 6971864353486592400
• 2640428820 cubed (2640428820³) is 18408711568076666056552968000
• The square root of 2640428820 is 51385.1030941847
• The cube root of 2640428820 is 1382.1594734583

Scales and comparisons

• 2,640,428,820 seconds is equal to 83 years, 49 weeks, 5 days, 12 hours, 27 minutes.
• To count from 1 to 2,640,428,820 would take you about one hundred sixty-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 2640428820 cubic inches would be around 115.2 feet tall.

Recreational maths with 2640428820

• 2640428820 backwards is 0288240462
• 2640428820 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 2640428820's digits is 36
• More coming soon!