28398888

Names of 28398888

• Cardinal: 28398888 can be written as Twenty-eight million, three hundred ninety-eight thousand, eight hundred eighty-eight.

Scientific notation

• Scientific notation: 2.8398888 × 10⁷

Factors of 28398888

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 108

Divisors of 28398888

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 28 29 36 42 56 58 63 67 72 84 87 116 126 134 168 174 201 203 232 252 261 268 348 402 406 469 504 522 536 603 609 696 804 812 841 938 1044 1206 1218 1407 1608 1624 1682 1827 1876 1943 2088 2412 2436 2523 2814 3364 3654 3752 3886 4221 4824 4872 5046 5628 5829 5887 6728 7308 7569 7772 8442 10092 11256 11658 11774 13601 14616 15138 15544 16884 17487 17661 20184 23316 23548 27202 30276 33768 34974 35322 40803 46632 47096 52983 54404 56347 60552 69948 70644 81606 105966 108808 112694 122409 139896 141288 163212 169041 211932 225388 244818 326424 338082 394429 423864 450776 489636 507123 676164 788858 979272 1014246 1183287 1352328 1577716 2028492 2366574 3155432 3549861 4056984 4733148 7099722 9466296 14199444 28398888
• Sum of all divisors σ(n): 92395680
• Sum of proper divisors (its aliquot sum) s(n): 63996792
• 28398888 is an abundant number, because the sum of its proper divisors (63996792) is greater than itself. Its abundance is 35597904

Bases of 28398888

• Binary: 1101100010101010100101000₂
• Hexadecimal: 0x1B15528
• Base-36: GWOQ0

Squares and roots of 28398888

• 28398888 squared (28398888²) is 806496839636544
• 28398888 cubed (28398888³) is 22903613421192173763072
• The square root of 28398888 is 5329.0607052275
• The cube root of 28398888 is 305.0940782971

Scales and comparisons

• 28,398,888 seconds is equal to 46 weeks, 6 days, 16 hours, 34 minutes, 48 seconds.
• To count from 1 to 28,398,888 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 28398888 cubic inches would be around 25.4 feet tall.

Recreational maths with 28398888

• 28398888 backwards is 88889382
• The number of decimal digits it has is: 8
• The sum of 28398888's digits is 54
• More coming soon!