28020250

Names of 28020250

• Cardinal: 28020250 can be written as Twenty-eight million, twenty thousand, two hundred fifty.

Scientific notation

• Scientific notation: 2.802025 × 10⁷

Factors of 28020250

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 390

Divisors of 28020250

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 10 17 19 25 34 38 50 85 95 125 170 190 250 323 347 425 475 646 694 850 950 1615 1735 2125 2375 3230 3470 4250 4750 5899 6593 8075 8675 11798 13186 16150 17350 29495 32965 40375 43375 58990 65930 80750 86750 112081 147475 164825 224162 294950 329650 560405 737375 824125 1120810 1474750 1648250 2802025 5604050 14010125 28020250
• Sum of all divisors σ(n): 58631040
• Sum of proper divisors (its aliquot sum) s(n): 30610790
• 28020250 is an abundant number, because the sum of its proper divisors (30610790) is greater than itself. Its abundance is 2590540

Bases of 28020250

• Binary: 1101010111000111000011010₂
• Hexadecimal: 0x1AB8E1A
• Base-36: GOKKA

Squares and roots of 28020250

• 28020250 squared (28020250²) is 785134410062500
• 28020250 cubed (28020250³) is 21999662453553765625000
• The square root of 28020250 is 5293.4157214411
• The cube root of 28020250 is 303.7320830315

Scales and comparisons

• 28,020,250 seconds is equal to 46 weeks, 2 days, 7 hours, 24 minutes, 10 seconds.
• To count from 1 to 28,020,250 would take you about seventeen 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 28020250 cubic inches would be around 25.3 feet tall.

Recreational maths with 28020250

• 28020250 backwards is 05202082
• 28020250 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28020250's digits is 19
• More coming soon!