21085056

Names of 21085056

• Cardinal: 21085056 can be written as Twenty-one million, eighty-five thousand and fifty-six.

Scientific notation

• Scientific notation: 2.1085056 × 10⁷

Factors of 21085056

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 6106

Divisors of 21085056

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 288 384 432 576 864 1152 1728 3456 6101 12202 18303 24404 36606 48808 54909 73212 97616 109818 146424 164727 195232 219636 292848 329454 390464 439272 585696 658908 780928 878544 1171392 1317816 1757088 2342784 2635632 3514176 5271264 7028352 10542528 21085056
• Sum of all divisors σ(n): 62240400
• Sum of proper divisors (its aliquot sum) s(n): 41155344
• 21085056 is an abundant number, because the sum of its proper divisors (41155344) is greater than itself. Its abundance is 20070288

Bases of 21085056

• Binary: 1010000011011101110000000₂
• Hexadecimal: 0x141BB80
• Base-36: CJXC0

Squares and roots of 21085056

• 21085056 squared (21085056²) is 444579586523136
• 21085056 cubed (21085056³) is 9373985478297167855616
• The square root of 21085056 is 4591.8466873361
• The cube root of 21085056 is 276.2643969211

Scales and comparisons

• 21,085,056 seconds is equal to 34 weeks, 6 days, 57 minutes, 36 seconds.
• To count from 1 to 21,085,056 would take you about two days!

  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 21085056 cubic inches would be around 23 feet tall.

Recreational maths with 21085056

• 21085056 backwards is 65058012
• 21085056 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21085056's digits is 27
• More coming soon!