28428624

Names of 28428624

• Cardinal: 28428624 can be written as Twenty-eight million, four hundred twenty-eight thousand, six hundred twenty-four.

Scientific notation

• Scientific notation: 2.8428624 × 10⁷

Factors of 28428624

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 108

Divisors of 28428624

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 17 18 21 24 27 28 34 36 42 48 49 51 54 56 63 68 72 79 84 98 102 108 112 119 126 136 144 147 153 158 168 189 196 204 216 237 238 252 272 294 306 316 336 357 378 392 408 432 441 459 474 476 504 553 588 612 632 711 714 756 784 816 833 882 918 948 952 1008 1071 1106 1176 1224 1264 1323 1343 1422 1428 1512 1659 1666 1764 1836 1896 1904 2133 2142 2212 2352 2448 2499 2646 2686 2844 2856 3024 3213 3318 3332 3528 3672 3792 3871 4029 4266 4284 4424 4977 4998 5292 5372 5688 5712 6426 6636 6664 7056 7344 7497 7742 8058 8532 8568 8848 9401 9954 9996 10584 10744 11376 11613 12087 12852 13272 13328 14931 14994 15484 16116 17064 17136 18802 19908 19992 21168 21488 22491 23226 24174 25704 26544 28203 29862 29988 30968 32232 34128 34839 36261 37604 39816 39984 44982 46452 48348 51408 56406 59724 59976 61936 64464 65807 69678 72522 75208 79632 84609 89964 92904 96696 104517 112812 119448 119952 131614 139356 145044 150416 169218 179928 185808 193392 197421 209034 225624 238896 253827 263228 278712 290088 338436 359856 394842 418068 451248 507654 526456 557424 580176 592263 676872 789684 836136 1015308 1052912 1184526 1353744 1579368 1672272 1776789 2030616 2369052 3158736 3553578 4061232 4738104 7107156 9476208 14214312 28428624
• Sum of all divisors σ(n): 101779200
• Sum of proper divisors (its aliquot sum) s(n): 73350576
• 28428624 is an abundant number, because the sum of its proper divisors (73350576) is greater than itself. Its abundance is 44921952

Bases of 28428624

• Binary: 1101100011100100101010000₂
• Hexadecimal: 0x1B1C950
• Base-36: GXBO0

Squares and roots of 28428624

• 28428624 squared (28428624²) is 808186662533376
• 28428624 cubed (28428624³) is 22975634750976233754624
• The square root of 28428624 is 5331.8499603797
• The cube root of 28428624 is 305.2005274521

Scales and comparisons

• 28,428,624 seconds is equal to 47 weeks, 50 minutes, 24 seconds.
• To count from 1 to 28,428,624 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 28428624 cubic inches would be around 25.4 feet tall.

Recreational maths with 28428624

• 28428624 backwards is 42682482
• 28428624 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28428624's digits is 36
• More coming soon!