28918144

Names of 28918144

• Cardinal: 28918144 can be written as Twenty-eight million, nine hundred eighteen thousand, one hundred forty-four.

Scientific notation

• Scientific notation: 2.8918144 × 10⁷

Factors of 28918144

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1598

Divisors of 28918144

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 4 8 16 32 64 128 157 314 628 1256 1439 2512 2878 5024 5756 10048 11512 20096 23024 46048 92096 184192 225923 451846 903692 1807384 3614768 7229536 14459072 28918144
• Sum of all divisors σ(n): 58017600
• Sum of proper divisors (its aliquot sum) s(n): 29099456
• 28918144 is an abundant number, because the sum of its proper divisors (29099456) is greater than itself. Its abundance is 181312

Bases of 28918144

• Binary: 1101110010100000110000000₂
• Hexadecimal: 0x1B94180
• Base-36: H7TDS

Squares and roots of 28918144

• 28918144 squared (28918144²) is 836259052404736
• 28918144 cubed (28918144³) is 24183059698743701929984
• The square root of 28918144 is 5377.5592976739
• The cube root of 28918144 is 306.9423439987

Scales and comparisons

• 28,918,144 seconds is equal to 47 weeks, 5 days, 16 hours, 49 minutes, 4 seconds.
• To count from 1 to 28,918,144 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 28918144 cubic inches would be around 25.6 feet tall.

Recreational maths with 28918144

• 28918144 backwards is 44181982
• The number of decimal digits it has is: 8
• The sum of 28918144's digits is 37
• More coming soon!