28720608

Names of 28720608

• Cardinal: 28720608 can be written as Twenty-eight million, seven hundred twenty thousand, six hundred eight.

Scientific notation

• Scientific notation: 2.8720608 × 10⁷

Factors of 28720608

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 632

Divisors of 28720608

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 79 84 96 112 158 168 224 237 316 336 474 541 553 632 672 948 1082 1106 1264 1623 1659 1896 2164 2212 2528 3246 3318 3787 3792 4328 4424 6492 6636 7574 7584 8656 8848 11361 12984 13272 15148 17312 17696 22722 25968 26544 30296 42739 45444 51936 53088 60592 85478 90888 121184 128217 170956 181776 256434 299173 341912 363552 512868 598346 683824 897519 1025736 1196692 1367648 1795038 2051472 2393384 3590076 4102944 4786768 7180152 9573536 14360304 28720608
• Sum of all divisors σ(n): 87413760
• Sum of proper divisors (its aliquot sum) s(n): 58693152
• 28720608 is an abundant number, because the sum of its proper divisors (58693152) is greater than itself. Its abundance is 29972544

Bases of 28720608

• Binary: 1101101100011110111100000₂
• Hexadecimal: 0x1B63DE0
• Base-36: H3KYO

Squares and roots of 28720608

• 28720608 squared (28720608²) is 824873323889664
• 28720608 cubed (28720608³) is 23690863385092074995712
• The square root of 28720608 is 5359.1611283857
• The cube root of 28720608 is 306.2418524557

Scales and comparisons

• 28,720,608 seconds is equal to 47 weeks, 3 days, 9 hours, 56 minutes, 48 seconds.
• To count from 1 to 28,720,608 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 28720608 cubic inches would be around 25.5 feet tall.

Recreational maths with 28720608

• 28720608 backwards is 80602782
• The number of decimal digits it has is: 8
• The sum of 28720608's digits is 33
• More coming soon!