28934490

Names of 28934490

• Cardinal: 28934490 can be written as Twenty-eight million, nine hundred thirty-four thousand, four hundred ninety.

Scientific notation

• Scientific notation: 2.893449 × 10⁷

Factors of 28934490

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 462

Divisors of 28934490

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 10 13 15 26 30 39 65 78 130 169 195 338 390 439 507 845 878 1014 1317 1690 2195 2197 2535 2634 4390 4394 5070 5707 6585 6591 10985 11414 13170 13182 17121 21970 28535 32955 34242 57070 65910 74191 85605 148382 171210 222573 370955 445146 741910 964483 1112865 1928966 2225730 2893449 4822415 5786898 9644830 14467245 28934490
• Sum of all divisors σ(n): 75398400
• Sum of proper divisors (its aliquot sum) s(n): 46463910
• 28934490 is an abundant number, because the sum of its proper divisors (46463910) is greater than itself. Its abundance is 17529420

Bases of 28934490

• Binary: 1101110011000000101011010₂
• Hexadecimal: 0x1B9815A
• Base-36: H85ZU

Squares and roots of 28934490

• 28934490 squared (28934490²) is 837204711560100
• 28934490 cubed (28934490³) is 24224091354588597849000
• The square root of 28934490 is 5379.0789174355
• The cube root of 28934490 is 307.0001662263

Scales and comparisons

• 28,934,490 seconds is equal to 47 weeks, 5 days, 21 hours, 21 minutes, 30 seconds.
• To count from 1 to 28,934,490 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 28934490 cubic inches would be around 25.6 feet tall.

Recreational maths with 28934490

• 28934490 backwards is 09443982
• 28934490 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28934490's digits is 39
• More coming soon!