28907648

Names of 28907648

• Cardinal: 28907648 can be written as Twenty-eight million, nine hundred seven thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 2.8907648 × 10⁷

Factors of 28907648

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 439

Divisors of 28907648

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 32 44 49 56 64 77 88 98 112 128 154 176 196 224 308 352 392 419 448 539 616 704 784 838 896 1078 1232 1408 1568 1676 2156 2464 2933 3136 3352 4312 4609 4928 5866 6272 6704 8624 9218 9856 11732 13408 17248 18436 20531 23464 26816 32263 34496 36872 41062 46928 53632 64526 68992 73744 82124 93856 129052 147488 164248 187712 225841 258104 294976 328496 375424 451682 516208 589952 656992 903364 1032416 1313984 1806728 2064832 2627968 3613456 4129664 7226912 14453824 28907648
• Sum of all divisors σ(n): 73256400
• Sum of proper divisors (its aliquot sum) s(n): 44348752
• 28907648 is an abundant number, because the sum of its proper divisors (44348752) is greater than itself. Its abundance is 15441104

Bases of 28907648

• Binary: 1101110010001100010000000₂
• Hexadecimal: 0x1B91880
• Base-36: H7LA8

Squares and roots of 28907648

• 28907648 squared (28907648²) is 835652112891904
• 28907648 cubed (28907648³) is 24156737129935422881792
• The square root of 28907648 is 5376.5833016889
• The cube root of 28907648 is 306.9052040321

Scales and comparisons

• 28,907,648 seconds is equal to 47 weeks, 5 days, 13 hours, 54 minutes, 8 seconds.
• To count from 1 to 28,907,648 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 28907648 cubic inches would be around 25.6 feet tall.

Recreational maths with 28907648

• 28907648 backwards is 84670982
• 28907648 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28907648's digits is 44
• More coming soon!