28943472

Names of 28943472

• Cardinal: 28943472 can be written as Twenty-eight million, nine hundred forty-three thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 2.8943472 × 10⁷

Factors of 28943472

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 464

Divisors of 28943472

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 37 43 48 74 86 111 129 148 172 222 258 296 344 379 444 516 592 688 758 888 1032 1137 1516 1591 1776 2064 2274 3032 3182 4548 4773 6064 6364 9096 9546 12728 14023 16297 18192 19092 25456 28046 32594 38184 42069 48891 56092 65188 76368 84138 97782 112184 130376 168276 195564 224368 260752 336552 391128 602989 673104 782256 1205978 1808967 2411956 3617934 4823912 7235868 9647824 14471736 28943472
• Sum of all divisors σ(n): 78784640
• Sum of proper divisors (its aliquot sum) s(n): 49841168
• 28943472 is an abundant number, because the sum of its proper divisors (49841168) is greater than itself. Its abundance is 20897696

Bases of 28943472

• Binary: 1101110011010010001110000₂
• Hexadecimal: 0x1B9A470
• Base-36: H8CXC

Squares and roots of 28943472

• 28943472 squared (28943472²) is 837724571414784
• 28943472 cubed (28943472³) is 24246657676455801090048
• The square root of 28943472 is 5379.9137539555
• The cube root of 28943472 is 307.0319298205

Scales and comparisons

• 28,943,472 seconds is equal to 47 weeks, 5 days, 23 hours, 51 minutes, 12 seconds.
• To count from 1 to 28,943,472 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 28943472 cubic inches would be around 25.6 feet tall.

Recreational maths with 28943472

• 28943472 backwards is 27434982
• The number of decimal digits it has is: 8
• The sum of 28943472's digits is 39
• More coming soon!