28420260

Names of 28420260

• Cardinal: 28420260 can be written as Twenty-eight million, four hundred twenty thousand, two hundred sixty.

Scientific notation

• Scientific notation: 2.842026 × 10⁷

Factors of 28420260

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 187

Divisors of 28420260

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 10 11 12 15 17 20 22 30 33 34 44 51 55 60 66 68 85 102 110 132 149 165 170 187 204 220 255 289 298 330 340 374 447 510 561 578 596 660 745 748 867 894 935 1020 1122 1156 1445 1490 1639 1734 1788 1870 2235 2244 2533 2805 2890 2980 3179 3278 3468 3740 4335 4470 4917 5066 5610 5780 6358 6556 7599 8195 8670 8940 9537 9834 10132 11220 12665 12716 15198 15895 16390 17340 19074 19668 24585 25330 27863 30396 31790 32780 37995 38148 43061 47685 49170 50660 55726 63580 75990 83589 86122 95370 98340 111452 129183 139315 151980 167178 172244 190740 215305 258366 278630 334356 417945 430610 473671 516732 557260 645915 835890 861220 947342 1291830 1421013 1671780 1894684 2368355 2583660 2842026 4736710 5684052 7105065 9473420 14210130 28420260
• Sum of all divisors σ(n): 92836800
• Sum of proper divisors (its aliquot sum) s(n): 64416540
• 28420260 is an abundant number, because the sum of its proper divisors (64416540) is greater than itself. Its abundance is 35996280

Bases of 28420260

• Binary: 1101100011010100010100100₂
• Hexadecimal: 0x1B1A8A4
• Base-36: GX57O

Squares and roots of 28420260

• 28420260 squared (28420260²) is 807711178467600
• 28420260 cubed (28420260³) is 22955361696955593576000
• The square root of 28420260 is 5331.0655595293
• The cube root of 28420260 is 305.1705934481

Scales and comparisons

• 28,420,260 seconds is equal to 46 weeks, 6 days, 22 hours, 31 minutes.
• To count from 1 to 28,420,260 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 28420260 cubic inches would be around 25.4 feet tall.

Recreational maths with 28420260

• 28420260 backwards is 06202482
• The number of decimal digits it has is: 8
• The sum of 28420260's digits is 24
• More coming soon!