28164920

Names of 28164920

• Cardinal: 28164920 can be written as Twenty-eight million, one hundred sixty-four thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.816492 × 10⁷

Factors of 28164920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 189

Divisors of 28164920

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 7 8 10 14 17 20 28 34 35 40 56 61 68 70 85 97 119 122 136 140 170 194 238 244 280 305 340 388 427 476 485 488 595 610 679 680 776 854 952 970 1037 1190 1220 1358 1649 1708 1940 2074 2135 2380 2440 2716 3298 3395 3416 3880 4148 4270 4760 5185 5432 5917 6596 6790 7259 8245 8296 8540 10370 11543 11834 13192 13580 14518 16490 17080 20740 23086 23668 27160 29036 29585 32980 36295 41419 41480 46172 47336 57715 58072 59170 65960 72590 82838 92344 100589 115430 118340 145180 165676 201178 207095 230860 236680 290360 331352 402356 414190 461720 502945 704123 804712 828380 1005890 1408246 1656760 2011780 2816492 3520615 4023560 5632984 7041230 14082460 28164920
• Sum of all divisors σ(n): 78744960
• Sum of proper divisors (its aliquot sum) s(n): 50580040
• 28164920 is an abundant number, because the sum of its proper divisors (50580040) is greater than itself. Its abundance is 22415120

Bases of 28164920

• Binary: 1101011011100001100111000₂
• Hexadecimal: 0x1ADC338
• Base-36: GRO6W

Squares and roots of 28164920

• 28164920 squared (28164920²) is 793262718606400
• 28164920 cubed (28164920³) is 22342181008531767488000
• The square root of 28164920 is 5307.0632180141
• The cube root of 28164920 is 304.2539141303

Scales and comparisons

• 28,164,920 seconds is equal to 46 weeks, 3 days, 23 hours, 35 minutes, 20 seconds.
• To count from 1 to 28,164,920 would take you about seventeen 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 28164920 cubic inches would be around 25.4 feet tall.

Recreational maths with 28164920

• 28164920 backwards is 02946182
• The number of decimal digits it has is: 8
• The sum of 28164920's digits is 32
• More coming soon!