28993888

Names of 28993888

• Cardinal: 28993888 can be written as Twenty-eight million, nine hundred ninety-three thousand, eight hundred eighty-eight.

Scientific notation

• Scientific notation: 2.8993888 × 10⁷

Factors of 28993888

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 61

Divisors of 28993888

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 32 41 44 49 56 77 82 88 98 112 154 164 176 196 224 287 308 328 352 392 451 539 574 616 656 784 902 1078 1148 1232 1312 1568 1681 1804 2009 2156 2296 2464 3157 3362 3608 4018 4312 4592 6314 6724 7216 8036 8624 9184 11767 12628 13448 14432 16072 17248 18491 22099 23534 25256 26896 32144 36982 44198 47068 50512 53792 64288 73964 82369 88396 94136 101024 129437 147928 164738 176792 188272 258874 295856 329476 353584 376544 517748 591712 658952 707168 906059 1035496 1317904 1812118 2070992 2635808 3624236 4141984 7248472 14496944 28993888
• Sum of all divisors σ(n): 74247516
• Sum of proper divisors (its aliquot sum) s(n): 45253628
• 28993888 is an abundant number, because the sum of its proper divisors (45253628) is greater than itself. Its abundance is 16259740

Bases of 28993888

• Binary: 1101110100110100101100000₂
• Hexadecimal: 0x1BA6960
• Base-36: H9FTS

Squares and roots of 28993888

• 28993888 squared (28993888²) is 840645541356544
• 28993888 cubed (28993888³) is 24373582673791004803072
• The square root of 28993888 is 5384.5972922773
• The cube root of 28993888 is 307.2100971437

Scales and comparisons

• 28,993,888 seconds is equal to 47 weeks, 6 days, 13 hours, 51 minutes, 28 seconds.
• To count from 1 to 28,993,888 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 28993888 cubic inches would be around 25.6 feet tall.

Recreational maths with 28993888

• 28993888 backwards is 88839982
• The number of decimal digits it has is: 8
• The sum of 28993888's digits is 55
• More coming soon!