28730340

Names of 28730340

• Cardinal: 28730340 can be written as Twenty-eight million, seven hundred thirty thousand, three hundred forty.

Scientific notation

• Scientific notation: 2.873034 × 10⁷

Factors of 28730340

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 297

Divisors of 28730340

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 17 18 20 30 34 36 41 45 51 60 68 82 85 90 102 123 153 164 170 180 204 205 229 246 255 306 340 369 410 458 492 510 612 615 687 697 738 765 820 916 1020 1145 1230 1374 1394 1476 1530 1845 2061 2091 2290 2460 2748 2788 3060 3435 3485 3690 3893 4122 4182 4580 6273 6870 6970 7380 7786 8244 8364 9389 10305 10455 11679 12546 13740 13940 15572 18778 19465 20610 20910 23358 25092 28167 31365 35037 37556 38930 41220 41820 46716 46945 56334 58395 62730 70074 77860 84501 93890 112668 116790 125460 140148 140835 159613 169002 175185 187780 233580 281670 319226 338004 350370 422505 478839 563340 638452 700740 798065 845010 957678 1436517 1596130 1690020 1915356 2394195 2873034 3192260 4788390 5746068 7182585 9576780 14365170 28730340
• Sum of all divisors σ(n): 94938480
• Sum of proper divisors (its aliquot sum) s(n): 66208140
• 28730340 is an abundant number, because the sum of its proper divisors (66208140) is greater than itself. Its abundance is 37477800

Bases of 28730340

• Binary: 1101101100110001111100100₂
• Hexadecimal: 0x1B663E4
• Base-36: H3SH0

Squares and roots of 28730340

• 28730340 squared (28730340²) is 825432436515600
• 28730340 cubed (28730340³) is 23714954548121603304000
• The square root of 28730340 is 5360.0690294063
• The cube root of 28730340 is 306.2764386449

Scales and comparisons

• 28,730,340 seconds is equal to 47 weeks, 3 days, 12 hours, 39 minutes.
• To count from 1 to 28,730,340 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 28730340 cubic inches would be around 25.5 feet tall.

Recreational maths with 28730340

• 28730340 backwards is 04303782
• The number of decimal digits it has is: 8
• The sum of 28730340's digits is 27
• More coming soon!