28428330

Names of 28428330

• Cardinal: 28428330 can be written as Twenty-eight million, four hundred twenty-eight thousand, three hundred thirty.

Scientific notation

• Scientific notation: 2.842833 × 10⁷

Factors of 28428330

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 333

Divisors of 28428330

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 21 30 35 42 49 70 83 98 105 147 166 210 233 245 249 294 415 466 490 498 581 699 735 830 1162 1165 1245 1398 1470 1631 1743 2330 2490 2905 3262 3486 3495 4067 4893 5810 6990 8134 8155 8715 9786 11417 12201 16310 17430 19339 20335 22834 24402 24465 34251 38678 40670 48930 57085 58017 61005 68502 96695 114170 116034 122010 135373 171255 193390 270746 290085 342510 406119 580170 676865 812238 947611 1353730 1895222 2030595 2842833 4061190 4738055 5685666 9476110 14214165 28428330
• Sum of all divisors σ(n): 80668224
• Sum of proper divisors (its aliquot sum) s(n): 52239894
• 28428330 is an abundant number, because the sum of its proper divisors (52239894) is greater than itself. Its abundance is 23811564

Bases of 28428330

• Binary: 1101100011100100000101010₂
• Hexadecimal: 0x1B1C82A
• Base-36: GXBFU

Squares and roots of 28428330

• 28428330 squared (28428330²) is 808169946588900
• 28428330 cubed (28428330³) is 22974921937711623537000
• The square root of 28428330 is 5331.8223901401
• The cube root of 28428330 is 305.1994753519

Scales and comparisons

• 28,428,330 seconds is equal to 47 weeks, 45 minutes, 30 seconds.
• To count from 1 to 28,428,330 would take you about eighteen 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 28428330 cubic inches would be around 25.4 feet tall.

Recreational maths with 28428330

• 28428330 backwards is 03382482
• 28428330 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28428330's digits is 30
• More coming soon!