428836640

Names of 428836640

• Cardinal: 428836640 can be written as Four hundred twenty-eight million, eight hundred thirty-six thousand, six hundred forty.

Scientific notation

• Scientific notation: 4.2883664 × 10⁸

Factors of 428836640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2827

Divisors of 428836640

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 8 10 16 20 31 32 40 62 80 124 155 160 248 310 496 620 961 992 1240 1922 2480 2789 3844 4805 4960 5578 7688 9610 11156 13945 15376 19220 22312 27890 30752 38440 44624 55780 76880 86459 89248 111560 153760 172918 223120 345836 432295 446240 691672 864590 1383344 1729180 2680229 2766688 3458360 5360458 6916720 10720916 13401145 13833440 21441832 26802290 42883664 53604580 85767328 107209160 214418320 428836640
• Sum of all divisors σ(n): 1047237660
• Sum of proper divisors (its aliquot sum) s(n): 618401020
• 428836640 is an abundant number, because the sum of its proper divisors (618401020) is greater than itself. Its abundance is 189564380

Bases of 428836640

• Binary: 11001100011111000011100100000₂
• Hexadecimal: 0x198F8720
• Base-36: 73BGGW

Squares and roots of 428836640

• 428836640 squared (428836640²) is 183900863806489600
• 428836640 cubed (428836640³) is 78863428527872610258944000
• The square root of 428836640 is 20708.3712541571
• The cube root of 428836640 is 754.1029299873

Scales and comparisons

• 428,836,640 seconds is equal to 13 years, 33 weeks, 9 hours, 17 minutes, 20 seconds.
• To count from 1 to 428,836,640 would take you about twenty 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 428836640 cubic inches would be around 62.8 feet tall.

Recreational maths with 428836640

• 428836640 backwards is 046638824
• The number of decimal digits it has is: 9
• The sum of 428836640's digits is 41
• More coming soon!