40321813

Names of 40321813

• Cardinal: 40321813 can be written as Forty million, three hundred twenty-one thousand, eight hundred thirteen.

Scientific notation

• Scientific notation: 4.0321813 × 10⁷

Factors of 40321813

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 5760266

Divisors of 40321813

• Number of divisors d(n): 4
• Complete list of divisors:
  1 7 5760259 40321813
• Sum of all divisors σ(n): 46082080
• Sum of proper divisors (its aliquot sum) s(n): 5760267
• 40321813 is a deficient number, because the sum of its proper divisors (5760267) is less than itself. Its deficiency is 34561546

Bases of 40321813

• Binary: 10011001110100001100010101₂
• Hexadecimal: 0x2674315
• Base-36: O08ID

Squares and roots of 40321813

• 40321813 squared (40321813²) is 1625848603606969
• 40321813 cubed (40321813³) is 65557163360951329514797
• The square root of 40321813 is 6349.9459052813
• The cube root of 40321813 is 342.9098948179

Scales and comparisons

• 40,321,813 seconds is equal to 1 year, 14 weeks, 4 days, 16 hours, 30 minutes, 13 seconds.
• To count from 1 to 40,321,813 would take you about forty-eight 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 40321813 cubic inches would be around 28.6 feet tall.

Recreational maths with 40321813

• 40321813 backwards is 31812304
• The number of decimal digits it has is: 8
• The sum of 40321813's digits is 22
• More coming soon!