28838970

Names of 28838970

• Cardinal: 28838970 can be written as Twenty-eight million, eight hundred thirty-eight thousand, nine hundred seventy.

Scientific notation

• Scientific notation: 2.883897 × 10⁷

Factors of 28838970

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 191

Divisors of 28838970

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 9 10 15 17 18 27 30 34 45 51 54 61 85 90 102 103 122 135 153 170 183 206 255 270 305 306 309 366 459 510 515 549 610 618 765 915 918 927 1030 1037 1098 1530 1545 1647 1751 1830 1854 2074 2295 2745 2781 3090 3111 3294 3502 4590 4635 5185 5253 5490 5562 6222 6283 8235 8755 9270 9333 10370 10506 12566 13905 15555 15759 16470 17510 18666 18849 26265 27810 27999 31110 31415 31518 37698 46665 47277 52530 55998 56547 62830 78795 93330 94245 94554 106811 113094 139995 157590 169641 188490 213622 236385 279990 282735 320433 339282 472770 534055 565470 640866 848205 961299 1068110 1602165 1696410 1922598 2883897 3204330 4806495 5767794 9612990 14419485 28838970
• Sum of all divisors σ(n): 83566080
• Sum of proper divisors (its aliquot sum) s(n): 54727110
• 28838970 is an abundant number, because the sum of its proper divisors (54727110) is greater than itself. Its abundance is 25888140

Bases of 28838970

• Binary: 1101110000000110000111010₂
• Hexadecimal: 0x1B80C3A
• Base-36: H64AI

Squares and roots of 28838970

• 28838970 squared (28838970²) is 831686190660900
• 28838970 cubed (28838970³) is 23984973101883975273000
• The square root of 28838970 is 5370.1927339715
• The cube root of 28838970 is 306.6619656389

Scales and comparisons

• 28,838,970 seconds is equal to 47 weeks, 4 days, 18 hours, 49 minutes, 30 seconds.
• To count from 1 to 28,838,970 would take you about nineteen weeks!

  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 28838970 cubic inches would be around 25.6 feet tall.

Recreational maths with 28838970

• 28838970 backwards is 07983882
• 28838970 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28838970's digits is 45
• More coming soon!