28428288

Names of 28428288

• Cardinal: 28428288 can be written as Twenty-eight million, four hundred twenty-eight thousand, two hundred eighty-eight.

Scientific notation

• Scientific notation: 2.8428288 × 10⁷

Factors of 28428288

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 673

Divisors of 28428288

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 256 336 384 448 512 661 672 768 896 1024 1322 1344 1536 1792 1983 2048 2644 2688 3072 3584 3966 4627 5288 5376 6144 7168 7932 9254 10576 10752 13881 14336 15864 18508 21152 21504 27762 31728 37016 42304 43008 55524 63456 74032 84608 111048 126912 148064 169216 222096 253824 296128 338432 444192 507648 592256 676864 888384 1015296 1184512 1353728 1776768 2030592 2369024 3553536 4061184 4738048 7107072 9476096 14214144 28428288
• Sum of all divisors σ(n): 86748480
• Sum of proper divisors (its aliquot sum) s(n): 58320192
• 28428288 is an abundant number, because the sum of its proper divisors (58320192) is greater than itself. Its abundance is 29891904

Bases of 28428288

• Binary: 1101100011100100000000000₂
• Hexadecimal: 0x1B1C800
• Base-36: GXBEO

Squares and roots of 28428288

• 28428288 squared (28428288²) is 808167558610944
• 28428288 cubed (28428288³) is 22974820108448795983872
• The square root of 28428288 is 5331.8184515229
• The cube root of 28428288 is 305.1993250513

Scales and comparisons

• 28,428,288 seconds is equal to 47 weeks, 44 minutes, 48 seconds.
• To count from 1 to 28,428,288 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 28428288 cubic inches would be around 25.4 feet tall.

Recreational maths with 28428288

• 28428288 backwards is 88282482
• 28428288 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28428288's digits is 42
• More coming soon!