28913200

Names of 28913200

• Cardinal: 28913200 can be written as Twenty-eight million, nine hundred thirteen thousand, two hundred.

Scientific notation

• Scientific notation: 2.89132 × 10⁷

Factors of 28913200

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 91

Divisors of 28913200

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 40 41 43 50 80 82 86 100 164 172 200 205 215 328 344 400 410 430 656 688 820 860 1025 1075 1640 1681 1720 1763 2050 2150 3280 3362 3440 3526 4100 4300 6724 7052 8200 8405 8600 8815 13448 14104 16400 16810 17200 17630 26896 28208 33620 35260 42025 44075 67240 70520 72283 84050 88150 134480 141040 144566 168100 176300 289132 336200 352600 361415 578264 672400 705200 722830 1156528 1445660 1807075 2891320 3614150 5782640 7228300 14456600 28913200
• Sum of all divisors σ(n): 72855332
• Sum of proper divisors (its aliquot sum) s(n): 43942132
• 28913200 is an abundant number, because the sum of its proper divisors (43942132) is greater than itself. Its abundance is 15028932

Bases of 28913200

• Binary: 1101110010010111000110000₂
• Hexadecimal: 0x1B92E30
• Base-36: H7PKG

Squares and roots of 28913200

• 28913200 squared (28913200²) is 835973134240000
• 28913200 cubed (28913200³) is 24170658424907968000000
• The square root of 28913200 is 5377.0995899277
• The cube root of 28913200 is 306.9248508355

Scales and comparisons

• 28,913,200 seconds is equal to 47 weeks, 5 days, 15 hours, 26 minutes, 40 seconds.
• To count from 1 to 28,913,200 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 28913200 cubic inches would be around 25.6 feet tall.

Recreational maths with 28913200

• 28913200 backwards is 00231982
• 28913200 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28913200's digits is 25
• More coming soon!