809931420

Names of 809931420

• Cardinal: 809931420 can be written as Eight hundred nine million, nine hundred thirty-one thousand, four hundred twenty.

Scientific notation

• Scientific notation: 8.0993142 × 10⁸

Factors of 809931420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 48424

Divisors of 809931420

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 31 36 45 54 60 62 90 93 108 124 135 155 180 186 270 279 310 372 465 540 558 620 837 930 1116 1395 1674 1860 2790 3348 4185 5580 8370 16740 48383 96766 145149 193532 241915 290298 435447 483830 580596 725745 870894 967660 1306341 1451490 1499873 1741788 2177235 2612682 2902980 2999746 4354470 4499619 5225364 5999492 6531705 7499365 8708940 8999238 13063410 13498857 14998730 17998476 22498095 26126820 26997714 29997460 40496571 44996190 53995428 67494285 80993142 89992380 134988570 161986284 202482855 269977140 404965710 809931420
• Sum of all divisors σ(n): 2601123840
• Sum of proper divisors (its aliquot sum) s(n): 1791192420
• 809931420 is an abundant number, because the sum of its proper divisors (1791192420) is greater than itself. Its abundance is 981261000

Bases of 809931420

• Binary: 110000010001101001001010011100₂
• Hexadecimal: 0x3046929C
• Base-36: DE7N30

Squares and roots of 809931420

• 809931420 squared (809931420²) is 655988905103216400
• 809931420 cubed (809931420³) is 531306025414493305419288000
• The square root of 809931420 is 28459.2940882237
• The cube root of 809931420 is 932.1434431417

Scales and comparisons

• 809,931,420 seconds is equal to 25 years, 39 weeks, 1 day, 4 hours, 57 minutes.
• To count from 1 to 809,931,420 would take you about thirty-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 809931420 cubic inches would be around 77.7 feet tall.

Recreational maths with 809931420

• 809931420 backwards is 024139908
• 809931420 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 809931420's digits is 36
• More coming soon!