6409939490

Names of 6409939490

• Cardinal: 6409939490 can be written as Six billion, four hundred nine million, nine hundred thirty-nine thousand, four hundred ninety.

Scientific notation

• Scientific notation: 6.40993949 × 10⁹

Factors of 6409939490

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 640993956

Divisors of 6409939490

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 640993949 1281987898 3204969745 6409939490
• Sum of all divisors σ(n): 11537891100
• Sum of proper divisors (its aliquot sum) s(n): 5127951610
• 6409939490 is a deficient number, because the sum of its proper divisors (5127951610) is less than itself. Its deficiency is 1281987880

Bases of 6409939490

• Binary: 101111110000011111110101000100010₂
• Hexadecimal: 0x17E0FEA22
• Base-36: 2Y0B8YQ

Squares and roots of 6409939490

• 6409939490 squared (6409939490²) is 41087324265461460100
• 6409939490 cubed (6409939490³) is 263367262347616656168049349000
• The square root of 6409939490 is 80062.0977117137
• The cube root of 6409939490 is 1857.5961826767

Scales and comparisons

• 6,409,939,490 seconds is equal to 203 years, 42 weeks, 3 days, 2 hours, 44 minutes, 50 seconds.
• To count from 1 to 6,409,939,490 would take you about four hundred seven 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 6409939490 cubic inches would be around 154.8 feet tall.

Recreational maths with 6409939490

• 6409939490 backwards is 0949399046
• The number of decimal digits it has is: 10
• The sum of 6409939490's digits is 53
• More coming soon!