28289268

Names of 28289268

• Cardinal: 28289268 can be written as Twenty-eight million, two hundred eighty-nine thousand, two hundred sixty-eight.

Scientific notation

• Scientific notation: 2.8289268 × 10⁷

Factors of 28289268

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 120

Divisors of 28289268

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 29 36 42 49 58 63 79 84 87 98 116 126 147 158 174 196 203 237 252 261 294 316 343 348 406 441 474 522 553 588 609 686 711 812 882 948 1029 1044 1106 1218 1372 1421 1422 1659 1764 1827 2058 2212 2291 2436 2842 2844 3087 3318 3654 3871 4116 4263 4582 4977 5684 6174 6636 6873 7308 7742 8526 9164 9947 9954 11613 12348 12789 13746 15484 16037 17052 19894 19908 20619 23226 25578 27097 27492 29841 32074 34839 39788 41238 46452 48111 51156 54194 59682 64148 69678 81291 82476 89523 96222 108388 112259 119364 139356 144333 162582 179046 192444 224518 243873 288666 325164 336777 358092 449036 487746 577332 673554 785813 975492 1010331 1347108 1571626 2020662 2357439 3143252 4041324 4714878 7072317 9429756 14144634 28289268
• Sum of all divisors σ(n): 87360000
• Sum of proper divisors (its aliquot sum) s(n): 59070732
• 28289268 is an abundant number, because the sum of its proper divisors (59070732) is greater than itself. Its abundance is 30781464

Bases of 28289268

• Binary: 1101011111010100011110100₂
• Hexadecimal: 0x1AFA8F4
• Base-36: GUC50

Squares and roots of 28289268

• 28289268 squared (28289268²) is 800282683975824
• 28289268 cubed (28289268³) is 22639411322751390656832
• The square root of 28289268 is 5318.7656462755
• The cube root of 28289268 is 304.7010166945

Scales and comparisons

• 28,289,268 seconds is equal to 46 weeks, 5 days, 10 hours, 7 minutes, 48 seconds.
• To count from 1 to 28,289,268 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 28289268 cubic inches would be around 25.4 feet tall.

Recreational maths with 28289268

• 28289268 backwards is 86298282
• The number of decimal digits it has is: 8
• The sum of 28289268's digits is 45
• More coming soon!