428205690

Names of 428205690

• Cardinal: 428205690 can be written as Four hundred twenty-eight million, two hundred five thousand, six hundred ninety.

Scientific notation

• Scientific notation: 4.2820569 × 10⁸

Factors of 428205690

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 295

Divisors of 428205690

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 17 18 22 27 30 33 34 45 51 54 55 66 81 85 90 99 102 110 121 135 153 162 165 170 187 198 242 255 257 270 297 306 330 363 374 405 459 495 510 514 561 594 605 726 765 771 810 891 918 935 990 1089 1122 1210 1285 1377 1485 1530 1542 1683 1782 1815 1870 2057 2178 2295 2313 2570 2754 2805 2827 2970 3267 3366 3630 3855 4114 4369 4455 4590 4626 5049 5445 5610 5654 6171 6534 6885 6939 7710 8415 8481 8738 8910 9801 10098 10285 10890 11565 12342 13107 13770 13878 14135 15147 16335 16830 16962 18513 19602 20570 20817 21845 23130 25245 25443 26214 28270 30294 30855 31097 32670 34695 37026 39321 41634 42405 43690 48059 49005 50490 50886 55539 61710 62194 65535 69390 75735 76329 78642 84810 92565 93291 96118 98010 104085 111078 117963 127215 131070 144177 151470 152658 155485 166617 185130 186582 196605 208170 228987 235926 240295 254430 277695 279873 288354 310970 333234 353889 381645 393210 432531 457974 466455 480590 528649 555390 559746 589815 707778 720885 763290 833085 839619 865062 932910 1057298 1144935 1179630 1297593 1399365 1441770 1585947 1666170 1679238 1769445 2162655 2289870 2518857 2595186 2643245 2798730 3171894 3538890 3892779 4198095 4325310 4757841 5037714 5286490 6487965 7785558 7929735 8396190 9515682 12594285 12975930 14273523 15859470 19463895 23789205 25188570 28547046 38927790 42820569 47578410 71367615 85641138 142735230 214102845 428205690
• Sum of all divisors σ(n): 1345246056
• Sum of proper divisors (its aliquot sum) s(n): 917040366
• 428205690 is an abundant number, because the sum of its proper divisors (917040366) is greater than itself. Its abundance is 488834676

Bases of 428205690

• Binary: 11001100001011110011001111010₂
• Hexadecimal: 0x1985E67A
• Base-36: 72XXMI

Squares and roots of 428205690

• 428205690 squared (428205690²) is 183360112948376100
• 428205690 cubed (428205690³) is 78515843683537322280009000
• The square root of 428205690 is 20693.1314691615
• The cube root of 428205690 is 753.7329096889

Scales and comparisons

• 428,205,690 seconds is equal to 13 years, 32 weeks, 2 hours, 1 minute, 30 seconds.
• To count from 1 to 428,205,690 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 428205690 cubic inches would be around 62.8 feet tall.

Recreational maths with 428205690

• 428205690 backwards is 096502824
• The number of decimal digits it has is: 9
• The sum of 428205690's digits is 36
• More coming soon!