28392900

Names of 28392900

• Cardinal: 28392900 can be written as Twenty-eight million, three hundred ninety-two thousand, nine hundred.

Scientific notation

• Scientific notation: 2.83929 × 10⁷

Factors of 28392900

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 155

Divisors of 28392900

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 25 30 31 43 50 60 62 71 75 86 93 100 124 129 142 150 155 172 186 213 215 258 284 300 310 355 372 426 430 465 516 620 645 710 775 852 860 930 1065 1075 1290 1333 1420 1550 1775 1860 2130 2150 2201 2325 2580 2666 3053 3100 3225 3550 3999 4260 4300 4402 4650 5325 5332 6106 6450 6603 6665 7100 7998 8804 9159 9300 10650 11005 12212 12900 13206 13330 15265 15996 18318 19995 21300 22010 26412 26660 30530 33015 33325 36636 39990 44020 45795 55025 61060 66030 66650 76325 79980 91590 94643 99975 110050 132060 133300 152650 165075 183180 189286 199950 220100 228975 283929 305300 330150 378572 399900 457950 473215 567858 660300 915900 946430 1135716 1419645 1892860 2366075 2839290 4732150 5678580 7098225 9464300 14196450 28392900
• Sum of all divisors σ(n): 87994368
• Sum of proper divisors (its aliquot sum) s(n): 59601468
• 28392900 is an abundant number, because the sum of its proper divisors (59601468) is greater than itself. Its abundance is 31208568

Bases of 28392900

• Binary: 1101100010011110111000100₂
• Hexadecimal: 0x1B13DC4
• Base-36: GWK3O

Squares and roots of 28392900

• 28392900 squared (28392900²) is 806156770410000
• 28392900 cubed (28392900³) is 22889128566574089000000
• The square root of 28392900 is 5328.4988505205
• The cube root of 28392900 is 305.0726334227

Scales and comparisons

• 28,392,900 seconds is equal to 46 weeks, 6 days, 14 hours, 55 minutes.
• To count from 1 to 28,392,900 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 28392900 cubic inches would be around 25.4 feet tall.

Recreational maths with 28392900

• 28392900 backwards is 00929382
• The number of decimal digits it has is: 8
• The sum of 28392900's digits is 33
• More coming soon!