7429642128

Names of 7429642128

• Cardinal: 7429642128 can be written as Seven billion, four hundred twenty-nine million, six hundred forty-two thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 7.429642128 × 10⁹

Factors of 7429642128

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 341843

Divisors of 7429642128

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 151 302 453 604 906 1208 1359 1812 2416 2718 3624 5436 7248 10872 21744 341687 683374 1025061 1366748 2050122 2733496 3075183 4100244 5466992 6150366 8200488 12300732 16400976 24601464 49202928 51594737 103189474 154784211 206378948 309568422 412757896 464352633 619136844 825515792 928705266 1238273688 1857410532 2476547376 3714821064 7429642128
• Sum of all divisors σ(n): 20930440128
• Sum of proper divisors (its aliquot sum) s(n): 13500798000
• 7429642128 is an abundant number, because the sum of its proper divisors (13500798000) is greater than itself. Its abundance is 6071155872

Bases of 7429642128

• Binary: 110111010110101110101011110010000₂
• Hexadecimal: 0x1BAD75790
• Base-36: 3EVF0K0

Squares and roots of 7429642128

• 7429642128 squared (7429642128²) is 55199582150152368384
• 7429642128 cubed (7429642128³) is 410113140990768857764741681152
• The square root of 7429642128 is 86195.3718479131
• The cube root of 7429642128 is 1951.2936520405

Scales and comparisons

• 7,429,642,128 seconds is equal to 236 years, 12 weeks, 3 days, 5 hours, 28 minutes, 48 seconds.
• To count from 1 to 7,429,642,128 would take you about four hundred seventy-two 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 7429642128 cubic inches would be around 162.6 feet tall.

Recreational maths with 7429642128

• 7429642128 backwards is 8212469247
• The number of decimal digits it has is: 10
• The sum of 7429642128's digits is 45
• More coming soon!