28904250

Names of 28904250

• Cardinal: 28904250 can be written as Twenty-eight million, nine hundred four thousand, two hundred fifty.

Scientific notation

• Scientific notation: 2.890425 × 10⁷

Factors of 28904250

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2294

Divisors of 28904250

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 10 15 17 25 30 34 50 51 75 85 102 125 150 170 250 255 375 425 510 750 850 1275 2125 2267 2550 4250 4534 6375 6801 11335 12750 13602 22670 34005 38539 56675 68010 77078 113350 115617 170025 192695 231234 283375 340050 385390 566750 578085 850125 963475 1156170 1700250 1926950 2890425 4817375 5780850 9634750 14452125 28904250
• Sum of all divisors σ(n): 76422528
• Sum of proper divisors (its aliquot sum) s(n): 47518278
• 28904250 is an abundant number, because the sum of its proper divisors (47518278) is greater than itself. Its abundance is 18614028

Bases of 28904250

• Binary: 1101110010000101100111010₂
• Hexadecimal: 0x1B90B3A
• Base-36: H7INU

Squares and roots of 28904250

• 28904250 squared (28904250²) is 835455668062500
• 28904250 cubed (28904250³) is 24148219493595515625000
• The square root of 28904250 is 5376.2672924625
• The cube root of 28904250 is 306.8931783249

Scales and comparisons

• 28,904,250 seconds is equal to 47 weeks, 5 days, 12 hours, 57 minutes, 30 seconds.
• To count from 1 to 28,904,250 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 28904250 cubic inches would be around 25.6 feet tall.

Recreational maths with 28904250

• 28904250 backwards is 05240982
• 28904250 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28904250's digits is 30
• More coming soon!