428754690

Names of 428754690

• Cardinal: 428754690 can be written as Four hundred twenty-eight million, seven hundred fifty-four thousand, six hundred ninety.

Scientific notation

• Scientific notation: 4.2875469 × 10⁸

Factors of 428754690

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4057

Divisors of 428754690

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 5 6 7 9 10 13 14 15 18 21 26 30 35 39 42 45 63 65 70 78 90 91 105 117 126 130 169 182 195 210 234 273 315 338 390 455 507 546 585 630 819 845 910 1014 1170 1183 1365 1521 1638 1690 2366 2535 2730 3042 3549 4027 4095 5070 5915 7098 7605 8054 8190 10647 11830 12081 15210 17745 20135 21294 24162 28189 35490 36243 40270 52351 53235 56378 60405 72486 84567 104702 106470 120810 140945 157053 169134 181215 253701 261755 281890 314106 362430 366457 422835 471159 507402 523510 680563 732914 785265 845670 942318 1099371 1268505 1361126 1570530 1832285 2041689 2198742 2355795 2537010 3298113 3402815 3664570 4083378 4711590 4763941 5496855 6125067 6596226 6805630 9527882 10208445 10993710 12250134 14291823 16490565 20416890 23819705 28583646 30625335 32981130 42875469 47639410 61250670 71459115 85750938 142918230 214377345 428754690
• Sum of all divisors σ(n): 1379896128
• Sum of proper divisors (its aliquot sum) s(n): 951141438
• 428754690 is an abundant number, because the sum of its proper divisors (951141438) is greater than itself. Its abundance is 522386748

Bases of 428754690

• Binary: 11001100011100100011100000010₂
• Hexadecimal: 0x198E4702
• Base-36: 739P8I

Squares and roots of 428754690

• 428754690 squared (428754690²) is 183830584196996100
• 428754690 cubed (428754690³) is 78818225139901961786709000
• The square root of 428754690 is 20706.3924912091
• The cube root of 428754690 is 754.0548909701

Scales and comparisons

• 428,754,690 seconds is equal to 13 years, 32 weeks, 6 days, 10 hours, 31 minutes, 30 seconds.
• To count from 1 to 428,754,690 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 428754690 cubic inches would be around 62.8 feet tall.

Recreational maths with 428754690

• 428754690 backwards is 096457824
• 428754690 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 428754690's digits is 45
• More coming soon!