809385940

Names of 809385940

• Cardinal: 809385940 can be written as Eight hundred nine million, three hundred eighty-five thousand, nine hundred forty.

Scientific notation

• Scientific notation: 8.0938594 × 10⁸

Factors of 809385940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 673

Divisors of 809385940

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 10 11 19 20 22 29 38 44 55 58 76 95 110 116 121 145 190 209 220 242 290 319 380 418 484 551 580 605 607 638 836 1045 1102 1210 1214 1276 1595 2090 2204 2299 2420 2428 2755 3035 3190 3509 4180 4598 5510 6061 6070 6380 6677 7018 9196 11020 11495 11533 12122 12140 13354 14036 17545 17603 22990 23066 24244 26708 30305 33385 35090 35206 45980 46132 57665 60610 66671 66770 70180 70412 73447 88015 115330 121220 126863 133342 133540 146894 176030 193633 230660 253726 266684 293788 333355 334457 352060 367235 387266 507452 634315 666710 668914 734470 774532 968165 1268630 1333420 1337828 1395493 1468940 1672285 1936330 2129963 2537260 2790986 3344570 3679027 3872660 4259926 5581972 6689140 6977465 7358054 8519852 10649815 13954930 14716108 18395135 21299630 27909860 36790270 40469297 42599260 73580540 80938594 161877188 202346485 404692970 809385940
• Sum of all divisors σ(n): 2037772800
• Sum of proper divisors (its aliquot sum) s(n): 1228386860
• 809385940 is an abundant number, because the sum of its proper divisors (1228386860) is greater than itself. Its abundance is 419000920

Bases of 809385940

• Binary: 110000001111100011111111010100₂
• Hexadecimal: 0x303E3FD4
• Base-36: DDVY6S

Squares and roots of 809385940

• 809385940 squared (809385940²) is 655105599869683600
• 809385940 cubed (809385940³) is 530233261749787738088584000
• The square root of 809385940 is 28449.7089616045
• The cube root of 809385940 is 931.9341333227

Scales and comparisons

• 809,385,940 seconds is equal to 25 years, 38 weeks, 1 day, 21 hours, 25 minutes, 40 seconds.
• To count from 1 to 809,385,940 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 809385940 cubic inches would be around 77.7 feet tall.

Recreational maths with 809385940

• 809385940 backwards is 049583908
• The number of decimal digits it has is: 9
• The sum of 809385940's digits is 46
• More coming soon!