28280340

Names of 28280340

• Cardinal: 28280340 can be written as Twenty-eight million, two hundred eighty thousand, three hundred forty.

Scientific notation

• Scientific notation: 2.828034 × 10⁷

Factors of 28280340

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 44

Divisors of 28280340

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 15 18 20 22 23 27 30 33 36 44 45 46 54 55 60 66 69 81 90 92 99 108 110 115 132 135 138 162 165 180 198 207 220 230 243 253 270 276 297 324 330 345 396 405 414 460 486 495 506 529 540 594 621 660 690 759 810 828 891 972 990 1012 1035 1058 1188 1215 1242 1265 1380 1485 1518 1587 1620 1782 1863 1980 2070 2116 2277 2430 2484 2530 2645 2673 2970 3036 3105 3174 3564 3726 3795 4140 4455 4554 4761 4860 5060 5290 5346 5589 5819 5940 6210 6348 6831 7452 7590 7935 8910 9108 9315 9522 10580 10692 11178 11385 11638 12420 13365 13662 14283 15180 15870 17457 17820 18630 19044 20493 22356 22770 23276 23805 26730 27324 27945 28566 29095 31740 34155 34914 37260 40986 42849 45540 47610 52371 53460 55890 57132 58190 61479 68310 69828 71415 81972 85698 87285 95220 102465 104742 111780 116380 122958 128547 136620 142830 157113 171396 174570 204930 209484 214245 245916 257094 261855 285660 307395 314226 349140 409860 428490 471339 514188 523710 614790 628452 642735 785565 856980 942678 1047420 1229580 1285470 1414017 1571130 1885356 2356695 2570940 2828034 3142260 4713390 5656068 7070085 9426780 14140170 28280340
• Sum of all divisors σ(n): 101451168
• Sum of proper divisors (its aliquot sum) s(n): 73170828
• 28280340 is an abundant number, because the sum of its proper divisors (73170828) is greater than itself. Its abundance is 44890488

Bases of 28280340

• Binary: 1101011111000011000010100₂
• Hexadecimal: 0x1AF8614
• Base-36: GU590

Squares and roots of 28280340

• 28280340 squared (28280340²) is 799777630515600
• 28280340 cubed (28280340³) is 22617983315375543304000
• The square root of 28280340 is 5317.9262875673
• The cube root of 28280340 is 304.6689591085

Scales and comparisons

• 28,280,340 seconds is equal to 46 weeks, 5 days, 7 hours, 39 minutes.
• To count from 1 to 28,280,340 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 28280340 cubic inches would be around 25.4 feet tall.

Recreational maths with 28280340

• 28280340 backwards is 04308282
• 28280340 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28280340's digits is 27
• More coming soon!