28939008

Names of 28939008

• Cardinal: 28939008 can be written as Twenty-eight million, nine hundred thirty-nine thousand and eight.

Scientific notation

• Scientific notation: 2.8939008 × 10⁷

Factors of 28939008

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 781

Divisors of 28939008

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 84 96 98 112 128 147 168 192 196 224 256 294 336 384 392 448 588 672 768 769 784 896 1176 1344 1538 1568 1792 2307 2352 2688 3076 3136 4614 4704 5376 5383 6152 6272 9228 9408 10766 12304 12544 16149 18456 18816 21532 24608 32298 36912 37632 37681 43064 49216 64596 73824 75362 86128 98432 113043 129192 147648 150724 172256 196864 226086 258384 295296 301448 344512 452172 516768 590592 602896 689024 904344 1033536 1205792 1378048 1808688 2067072 2411584 3617376 4134144 4823168 7234752 9646336 14469504 28939008
• Sum of all divisors σ(n): 89711160
• Sum of proper divisors (its aliquot sum) s(n): 60772152
• 28939008 is an abundant number, because the sum of its proper divisors (60772152) is greater than itself. Its abundance is 31833144

Bases of 28939008

• Binary: 1101110011001001100000000₂
• Hexadecimal: 0x1B99300
• Base-36: H89HC

Squares and roots of 28939008

• 28939008 squared (28939008²) is 837466184024064
• 28939008 cubed (28939008³) is 24235440599201860288512
• The square root of 28939008 is 5379.4988614183
• The cube root of 28939008 is 307.0161443267

Scales and comparisons

• 28,939,008 seconds is equal to 47 weeks, 5 days, 22 hours, 36 minutes, 48 seconds.
• To count from 1 to 28,939,008 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 28939008 cubic inches would be around 25.6 feet tall.

Recreational maths with 28939008

• 28939008 backwards is 80093982
• The number of decimal digits it has is: 8
• The sum of 28939008's digits is 39
• More coming soon!