21234136

Names of 21234136

• Cardinal: 21234136 can be written as Twenty-one million, two hundred thirty-four thousand, one hundred thirty-six.

Scientific notation

• Scientific notation: 2.1234136 × 10⁷

Factors of 21234136

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 34491

Divisors of 21234136

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 34471 68942 137884 241297 275768 379181 482594 758362 965188 1516724 1930376 2654267 3033448 5308534 10617068 21234136
• Sum of all divisors σ(n): 49639680
• Sum of proper divisors (its aliquot sum) s(n): 28405544
• 21234136 is an abundant number, because the sum of its proper divisors (28405544) is greater than itself. Its abundance is 7171408

Bases of 21234136

• Binary: 1010001000000000111011000₂
• Hexadecimal: 0x14401D8
• Base-36: CN4D4

Squares and roots of 21234136

• 21234136 squared (21234136²) is 450888531666496
• 21234136 cubed (21234136³) is 9574228402246682707456
• The square root of 21234136 is 4608.0512149935
• The cube root of 21234136 is 276.9139692953

Scales and comparisons

• 21,234,136 seconds is equal to 35 weeks, 18 hours, 22 minutes, 16 seconds.
• To count from 1 to 21,234,136 would take you about four 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 21234136 cubic inches would be around 23.1 feet tall.

Recreational maths with 21234136

• 21234136 backwards is 63143212
• 21234136 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21234136's digits is 22
• More coming soon!