12928321

Names of 12928321

• Cardinal: 12928321 can be written as Twelve million, nine hundred twenty-eight thousand, three hundred twenty-one.

Scientific notation

• Scientific notation: 1.2928321 × 10⁷

Factors of 12928321

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1846910

Divisors of 12928321

• Number of divisors d(n): 4
• Complete list of divisors:
  1 7 1846903 12928321
• Sum of all divisors σ(n): 14775232
• Sum of proper divisors (its aliquot sum) s(n): 1846911
• 12928321 is a deficient number, because the sum of its proper divisors (1846911) is less than itself. Its deficiency is 11081410

Bases of 12928321

• Binary: 110001010100010101000001₂
• Hexadecimal: 0xC54541
• Base-36: 7P3K1

Squares and roots of 12928321

• 12928321 squared (12928321²) is 167141483879041
• 12928321 cubed (12928321³) is 2160858756004567220161
• The square root of 12928321 is 3595.5974468787
• The cube root of 12928321 is 234.7005148299

Scales and comparisons

• 12,928,321 seconds is equal to 21 weeks, 2 days, 15 hours, 12 minutes, 1 second.
• To count from 1 to 12,928,321 would take you about thirty-two 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 12928321 cubic inches would be around 19.6 feet tall.

Recreational maths with 12928321

• 12928321 backwards is 12382921
• The number of decimal digits it has is: 8
• The sum of 12928321's digits is 28
• More coming soon!