45720321

Names of 45720321

• Cardinal: 45720321 can be written as Forty-five million, seven hundred twenty thousand, three hundred twenty-one.

Scientific notation

• Scientific notation: 4.5720321 × 10⁷

Factors of 45720321

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 15240110

Divisors of 45720321

• Number of divisors d(n): 4
• Complete list of divisors:
  1 3 15240107 45720321
• Sum of all divisors σ(n): 60960432
• Sum of proper divisors (its aliquot sum) s(n): 15240111
• 45720321 is a deficient number, because the sum of its proper divisors (15240111) is less than itself. Its deficiency is 30480210

Bases of 45720321

• Binary: 10101110011010001100000001₂
• Hexadecimal: 0x2B9A301
• Base-36: R7Y0X

Squares and roots of 45720321

• 45720321 squared (45720321²) is 2090347752343041
• 45720321 cubed (45720321³) is 95571370238752336636161
• The square root of 45720321 is 6761.6803384957
• The cube root of 45720321 is 357.5771486557

Scales and comparisons

• 45,720,321 seconds is equal to 1 year, 23 weeks, 4 days, 4 hours, 5 minutes, 21 seconds.
• To count from 1 to 45,720,321 would take you about two years!

  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 45720321 cubic inches would be around 29.8 feet tall.

Recreational maths with 45720321

• 45720321 backwards is 12302754
• The number of decimal digits it has is: 8
• The sum of 45720321's digits is 24
• More coming soon!