28144928

Names of 28144928

• Cardinal: 28144928 can be written as Twenty-eight million, one hundred forty-four thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 2.8144928 × 10⁷

Factors of 28144928

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 434

Divisors of 28144928

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 8 14 16 17 19 28 32 34 38 56 68 76 112 119 133 136 152 224 238 266 272 304 323 389 476 532 544 608 646 778 952 1064 1292 1556 1904 2128 2261 2584 2723 3112 3808 4256 4522 5168 5446 6224 6613 7391 9044 10336 10892 12448 13226 14782 18088 21784 26452 29564 36176 43568 46291 51737 52904 59128 72352 87136 92582 103474 105808 118256 125647 185164 206948 211616 236512 251294 370328 413896 502588 740656 827792 879529 1005176 1481312 1655584 1759058 2010352 3518116 4020704 7036232 14072464 28144928
• Sum of all divisors σ(n): 70761600
• Sum of proper divisors (its aliquot sum) s(n): 42616672
• 28144928 is an abundant number, because the sum of its proper divisors (42616672) is greater than itself. Its abundance is 14471744

Bases of 28144928

• Binary: 1101011010111010100100000₂
• Hexadecimal: 0x1AD7520
• Base-36: GR8RK

Squares and roots of 28144928

• 28144928 squared (28144928²) is 792136972125184
• 28144928 cubed (28144928³) is 22294638046601310666752
• The square root of 28144928 is 5305.1793560633
• The cube root of 28144928 is 304.1819086709

Scales and comparisons

• 28,144,928 seconds is equal to 46 weeks, 3 days, 18 hours, 2 minutes, 8 seconds.
• To count from 1 to 28,144,928 would take you about seventeen 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 28144928 cubic inches would be around 25.3 feet tall.

Recreational maths with 28144928

• 28144928 backwards is 82944182
• 28144928 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28144928's digits is 38
• More coming soon!