7640790081

Names of 7640790081

• Cardinal: 7640790081 can be written as Seven billion, six hundred forty million, seven hundred ninety thousand and eighty-one.

Scientific notation

• Scientific notation: 7.640790081 × 10⁹

Factors of 7640790081

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 38013951

Divisors of 7640790081

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 67 201 38013881 114041643 2546930027 7640790081
• Sum of all divisors σ(n): 10339775904
• Sum of proper divisors (its aliquot sum) s(n): 2698985823
• 7640790081 is a deficient number, because the sum of its proper divisors (2698985823) is less than itself. Its deficiency is 4941804258

Bases of 7640790081

• Binary: 111000111011011010011010001000001₂
• Hexadecimal: 0x1C76D3441
• Base-36: 3ID4NCX

Squares and roots of 7640790081

• 7640790081 squared (7640790081²) is 58381673061907986561
• 7640790081 cubed (7640790081³) is 446082108443611442649970101441
• The square root of 7640790081 is 87411.6129641823
• The cube root of 7640790081 is 1969.6062910641

Scales and comparisons

• 7,640,790,081 seconds is equal to 242 years, 49 weeks, 4 days, 1 hour, 41 minutes, 21 seconds.
• To count from 1 to 7,640,790,081 would take you about four hundred eighty-five 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 7640790081 cubic inches would be around 164.1 feet tall.

Recreational maths with 7640790081

• 7640790081 backwards is 1800970467
• The number of decimal digits it has is: 10
• The sum of 7640790081's digits is 42
• More coming soon!