28892920

Names of 28892920

• Cardinal: 28892920 can be written as Twenty-eight million, eight hundred ninety-two thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.889292 × 10⁷

Factors of 28892920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5464

Divisors of 28892920

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 7 8 10 14 19 20 28 35 38 40 56 70 76 95 133 140 152 190 266 280 380 532 665 760 1064 1330 2660 5320 5431 10862 21724 27155 38017 43448 54310 76034 103189 108620 152068 190085 206378 217240 304136 380170 412756 515945 722323 760340 825512 1031890 1444646 1520680 2063780 2889292 3611615 4127560 5778584 7223230 14446460 28892920
• Sum of all divisors σ(n): 78220800
• Sum of proper divisors (its aliquot sum) s(n): 49327880
• 28892920 is an abundant number, because the sum of its proper divisors (49327880) is greater than itself. Its abundance is 20434960

Bases of 28892920

• Binary: 1101110001101111011111000₂
• Hexadecimal: 0x1B8DEF8
• Base-36: H79X4

Squares and roots of 28892920

• 28892920 squared (28892920²) is 834800826126400
• 28892920 cubed (28892920³) is 24119833485203985088000
• The square root of 28892920 is 5375.2134841327
• The cube root of 28892920 is 306.8530740249

Scales and comparisons

• 28,892,920 seconds is equal to 47 weeks, 5 days, 9 hours, 48 minutes, 40 seconds.
• To count from 1 to 28,892,920 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 28892920 cubic inches would be around 25.6 feet tall.

Recreational maths with 28892920

• 28892920 backwards is 02929882
• 28892920 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28892920's digits is 40
• More coming soon!