6446866139

Names of 6446866139

• Cardinal: 6446866139 can be written as Six billion, four hundred forty-six million, eight hundred sixty-six thousand, one hundred thirty-nine.

Scientific notation

• Scientific notation: 6.446866139 × 10⁹

Factors of 6446866139

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 949465

Divisors of 6446866139

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 971 6797 948487 6639409 920980877 6446866139
• Sum of all divisors σ(n): 7375442688
• Sum of proper divisors (its aliquot sum) s(n): 928576549
• 6446866139 is a deficient number, because the sum of its proper divisors (928576549) is less than itself. Its deficiency is 5518289590

Bases of 6446866139

• Binary: 110000000010000110101111011011011₂
• Hexadecimal: 0x180435EDB
• Base-36: 2YMAPQZ

Squares and roots of 6446866139

• 6446866139 squared (6446866139²) is 41562083014184767321
• 6446866139 cubed (6446866139³) is 267945185650454833131348643619
• The square root of 6446866139 is 80292.3790841945
• The cube root of 6446866139 is 1861.1564607425

Scales and comparisons

• 6,446,866,139 seconds is equal to 204 years, 51 weeks, 3 days, 12 hours, 8 minutes, 59 seconds.
• To count from 1 to 6,446,866,139 would take you about four hundred nine 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 6446866139 cubic inches would be around 155.1 feet tall.

Recreational maths with 6446866139

• 6446866139 backwards is 9316686446
• The number of decimal digits it has is: 10
• The sum of 6446866139's digits is 53
• More coming soon!