1028467991

Names of 1028467991

• Cardinal: 1028467991 can be written as One billion, twenty-eight million, four hundred sixty-seven thousand, nine hundred ninety-one.

Scientific notation

• Scientific notation: 1.028467991 × 10⁹

Factors of 1028467991

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 12193

Divisors of 1028467991

• Number of divisors d(n): 8
• Complete list of divisors:
  1 61 1601 10531 97661 642391 16860131 1028467991
• Sum of all divisors σ(n): 1046080368
• Sum of proper divisors (its aliquot sum) s(n): 17612377
• 1028467991 is a deficient number, because the sum of its proper divisors (17612377) is less than itself. Its deficiency is 1010855614

Bases of 1028467991

• Binary: 111101010011010010110100010111₂
• Hexadecimal: 0x3D4D2D17
• Base-36: H0BMZB

Squares and roots of 1028467991

• 1028467991 squared (1028467991²) is 1057746408511576081
• 1028467991 cubed (1028467991³) is 1087858323749365952269723271
• The square root of 1028467991 is 32069.7363724743
• The cube root of 1028467991 is 1009.4006806159

Scales and comparisons

• 1,028,467,991 seconds is equal to 32 years, 36 weeks, 3 days, 13 hours, 33 minutes, 11 seconds.
• To count from 1 to 1,028,467,991 would take you about sixty-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 1028467991 cubic inches would be around 84.1 feet tall.

Recreational maths with 1028467991

• 1028467991 backwards is 1997648201
• The number of decimal digits it has is: 10
• The sum of 1028467991's digits is 47
• More coming soon!