1640038399

Names of 1640038399

• Cardinal: 1640038399 can be written as One billion, six hundred forty million, thirty-eight thousand, three hundred ninety-nine.

Scientific notation

• Scientific notation: 1.640038399 × 10⁹

Factors of 1640038399

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1635209

Divisors of 1640038399

• Number of divisors d(n): 8
• Complete list of divisors:
  1 17 59 1003 1635133 27797261 96472847 1640038399
• Sum of all divisors σ(n): 1765944720
• Sum of proper divisors (its aliquot sum) s(n): 125906321
• 1640038399 is a deficient number, because the sum of its proper divisors (125906321) is less than itself. Its deficiency is 1514132078

Bases of 1640038399

• Binary: 1100001110000001111111111111111₂
• Hexadecimal: 0x61C0FFFF
• Base-36: R4FPQ7

Squares and roots of 1640038399

• 1640038399 squared (1640038399²) is 2689725950194483201
• 1640038399 cubed (1640038399³) is 4411253841105713967600435199
• The square root of 1640038399 is 40497.3875577179
• The cube root of 1640038399 is 1179.2829117701

Scales and comparisons

• 1,640,038,399 seconds is equal to 52 years, 7 weeks, 4 days, 22 hours, 13 minutes, 19 seconds.
• To count from 1 to 1,640,038,399 would take you about one hundred four 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 1640038399 cubic inches would be around 98.3 feet tall.

Recreational maths with 1640038399

• 1640038399 backwards is 9938300461
• The number of decimal digits it has is: 10
• The sum of 1640038399's digits is 43
• More coming soon!