23138865

Names of 23138865

• Cardinal: 23138865 can be written as Twenty-three million, one hundred thirty-eight thousand, eight hundred sixty-five.

Scientific notation

• Scientific notation: 2.3138865 × 10⁷

Factors of 23138865

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 155

Divisors of 23138865

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 5 9 15 19 27 31 45 57 81 93 95 97 135 155 171 279 285 291 405 465 485 513 589 837 855 873 1395 1455 1539 1767 1843 2511 2565 2619 2945 3007 4185 4365 5301 5529 7695 7857 8835 9021 9215 12555 13095 15035 15903 16587 26505 27063 27645 39285 45105 47709 49761 57133 79515 81189 82935 135315 149283 171399 238545 243567 248805 285665 405945 514197 746415 856995 1217835 1542591 2570985 4627773 7712955 23138865
• Sum of all divisors σ(n): 45534720
• Sum of proper divisors (its aliquot sum) s(n): 22395855
• 23138865 is a deficient number, because the sum of its proper divisors (22395855) is less than itself. Its deficiency is 743010

Bases of 23138865

• Binary: 1011000010001001000110001₂
• Hexadecimal: 0x1611231
• Base-36: DRY29

Squares and roots of 23138865

• 23138865 squared (23138865²) is 535407073488225
• 23138865 cubed (23138865³) is 12388711993489117364625
• The square root of 23138865 is 4810.2874134505
• The cube root of 23138865 is 284.9578885147

Scales and comparisons

• 23,138,865 seconds is equal to 38 weeks, 1 day, 19 hours, 27 minutes, 45 seconds.
• To count from 1 to 23,138,865 would take you about five 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 23138865 cubic inches would be around 23.7 feet tall.

Recreational maths with 23138865

• 23138865 backwards is 56883132
• The number of decimal digits it has is: 8
• The sum of 23138865's digits is 36
• More coming soon!