7138367128

Names of 7138367128

• Cardinal: 7138367128 can be written as Seven billion, one hundred thirty-eight million, three hundred sixty-seven thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 7.138367128 × 10⁹

Factors of 7138367128

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 892295893

Divisors of 7138367128

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 4 8 892295891 1784591782 3569183564 7138367128
• Sum of all divisors σ(n): 13384438380
• Sum of proper divisors (its aliquot sum) s(n): 6246071252
• 7138367128 is a deficient number, because the sum of its proper divisors (6246071252) is less than itself. Its deficiency is 892295876

Bases of 7138367128

• Binary: 110101001011110101101011010011000₂
• Hexadecimal: 0x1A97AD698
• Base-36: 3A1ZZBS

Squares and roots of 7138367128

• 7138367128 squared (7138367128²) is 50956285254110968384
• 7138367128 cubed (7138367128³) is 363744671622936863576592881152
• The square root of 7138367128 is 84488.8580109827
• The cube root of 7138367128 is 1925.4531684437

Scales and comparisons

• 7,138,367,128 seconds is equal to 226 years, 50 weeks, 5 days, 23 hours, 45 minutes, 28 seconds.
• To count from 1 to 7,138,367,128 would take you about four hundred fifty-three 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 7138367128 cubic inches would be around 160.5 feet tall.

Recreational maths with 7138367128

• 7138367128 backwards is 8217638317
• The number of decimal digits it has is: 10
• The sum of 7138367128's digits is 46
• More coming soon!