72240897

Names of 72240897

• Cardinal: 72240897 can be written as Seventy-two million, two hundred forty thousand, eight hundred ninety-seven.

Scientific notation

• Scientific notation: 7.2240897 × 10⁷

Factors of 72240897

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 394823

Divisors of 72240897

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 61 183 394759 1184277 24080299 72240897
• Sum of all divisors σ(n): 97900480
• Sum of proper divisors (its aliquot sum) s(n): 25659583
• 72240897 is a deficient number, because the sum of its proper divisors (25659583) is less than itself. Its deficiency is 46581314

Bases of 72240897

• Binary: 100010011100100111100000001₂
• Hexadecimal: 0x44E4F01
• Base-36: 170DFL

Squares and roots of 72240897

• 72240897 squared (72240897²) is 5218747199364609
• 72240897 cubed (72240897³) is 377006978898337184214273
• The square root of 72240897 is 8499.4645125443
• The cube root of 72240897 is 416.4802165975

Scales and comparisons

• 72,240,897 seconds is equal to 2 years, 15 weeks, 3 days, 2 hours, 54 minutes, 57 seconds.
• To count from 1 to 72,240,897 would take you about three 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 72240897 cubic inches would be around 34.7 feet tall.

Recreational maths with 72240897

• 72240897 backwards is 79804227
• The number of decimal digits it has is: 8
• The sum of 72240897's digits is 39
• More coming soon!