28875231

Names of 28875231

• Cardinal: 28875231 can be written as Twenty-eight million, eight hundred seventy-five thousand, two hundred thirty-one.

Scientific notation

• Scientific notation: 2.8875231 × 10⁷

Factors of 28875231

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 100

Divisors of 28875231

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 9 11 17 19 21 27 33 43 51 57 63 77 99 119 129 133 153 171 187 189 209 231 297 301 323 357 387 399 459 473 513 561 627 693 731 817 903 969 1071 1161 1197 1309 1419 1463 1683 1881 2079 2193 2261 2451 2709 2907 3213 3311 3553 3591 3927 4257 4389 5049 5117 5643 5719 6579 6783 7353 8041 8127 8721 8987 9933 10659 11781 12771 13167 13889 15351 17157 19737 20349 22059 24123 24871 26961 29799 31977 35343 39501 41667 46053 51471 56287 61047 62909 72369 74613 80883 89397 95931 97223 125001 138159 152779 154413 168861 188727 217107 223839 242649 291669 375003 458337 506583 566181 671517 875007 1069453 1375011 1519749 1698543 2625021 3208359 4125033 9625077 28875231
• Sum of all divisors σ(n): 60825600
• Sum of proper divisors (its aliquot sum) s(n): 31950369
• 28875231 is an abundant number, because the sum of its proper divisors (31950369) is greater than itself. Its abundance is 3075138

Bases of 28875231

• Binary: 1101110001001100111011111₂
• Hexadecimal: 0x1B899DF
• Base-36: H6W9R

Squares and roots of 28875231

• 28875231 squared (28875231²) is 833778965303361
• 28875231 cubed (28875231³) is 24075560226075533951391
• The square root of 28875231 is 5373.5678091935
• The cube root of 28875231 is 306.7904400867

Scales and comparisons

• 28,875,231 seconds is equal to 47 weeks, 5 days, 4 hours, 53 minutes, 51 seconds.
• To count from 1 to 28,875,231 would take you about nineteen 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 28875231 cubic inches would be around 25.6 feet tall.

Recreational maths with 28875231

• 28875231 backwards is 13257882
• The number of decimal digits it has is: 8
• The sum of 28875231's digits is 36
• More coming soon!