28738320

Names of 28738320

• Cardinal: 28738320 can be written as Twenty-eight million, seven hundred thirty-eight thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.873832 × 10⁷

Factors of 28738320

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 235

Divisors of 28738320

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 61 65 78 80 104 120 122 130 151 156 183 195 208 240 244 260 302 305 312 366 390 453 488 520 604 610 624 732 755 780 793 906 915 976 1040 1208 1220 1464 1510 1560 1586 1812 1830 1963 2265 2379 2416 2440 2928 3020 3120 3172 3624 3660 3926 3965 4530 4758 4880 5889 6040 6344 7248 7320 7852 7930 9060 9211 9516 9815 11778 11895 12080 12688 14640 15704 15860 18120 18422 19032 19630 23556 23790 27633 29445 31408 31720 36240 36844 38064 39260 46055 47112 47580 55266 58890 63440 73688 78520 92110 94224 95160 110532 117780 119743 138165 147376 157040 184220 190320 221064 235560 239486 276330 359229 368440 442128 471120 478972 552660 598715 718458 736880 957944 1105320 1197430 1436916 1796145 1915888 2210640 2394860 2873832 3592290 4789720 5747664 7184580 9579440 14369160 28738320
• Sum of all divisors σ(n): 98160384
• Sum of proper divisors (its aliquot sum) s(n): 69422064
• 28738320 is an abundant number, because the sum of its proper divisors (69422064) is greater than itself. Its abundance is 40683744

Bases of 28738320

• Binary: 1101101101000001100010000₂
• Hexadecimal: 0x1B68310
• Base-36: H3YMO

Squares and roots of 28738320

• 28738320 squared (28738320²) is 825891036422400
• 28738320 cubed (28738320³) is 23734720889838586368000
• The square root of 28738320 is 5360.8133711217
• The cube root of 28738320 is 306.3047926397

Scales and comparisons

• 28,738,320 seconds is equal to 47 weeks, 3 days, 14 hours, 52 minutes.
• To count from 1 to 28,738,320 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 28738320 cubic inches would be around 25.5 feet tall.

Recreational maths with 28738320

• 28738320 backwards is 02383782
• The number of decimal digits it has is: 8
• The sum of 28738320's digits is 33
• More coming soon!