7243647138

Names of 7243647138

• Cardinal: 7243647138 can be written as Seven billion, two hundred forty-three million, six hundred forty-seven thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 7.243647138 × 10⁹

Factors of 7243647138

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4765

Divisors of 7243647138

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 39 42 63 78 91 117 126 182 234 273 546 819 1277 1638 2554 3463 3831 6926 7662 8939 10389 11493 16601 17878 20778 22986 24241 26817 31167 33202 45019 48482 49803 53634 62334 72723 80451 90038 99606 116207 135057 145446 149409 160902 218169 232414 270114 298818 315133 348621 405171 436338 630266 697242 810342 945399 1045863 1890798 2091726 2836197 4422251 5672394 8844502 13266753 26533506 30955757 39800259 57489263 61911514 79600518 92867271 114978526 172467789 185734542 278601813 344935578 402424841 517403367 557203626 804849682 1034806734 1207274523 2414549046 3621823569 7243647138
• Sum of all divisors σ(n): 19337101056
• Sum of proper divisors (its aliquot sum) s(n): 12093453918
• 7243647138 is an abundant number, because the sum of its proper divisors (12093453918) is greater than itself. Its abundance is 4849806780

Bases of 7243647138

• Binary: 110101111110000010100100010100010₂
• Hexadecimal: 0x1AFC148A2
• Base-36: 3BSOHWI

Squares and roots of 7243647138

• 7243647138 squared (7243647138²) is 52470423859855591044
• 7243647138 cubed (7243647138³) is 380077235622089865159169032072
• The square root of 7243647138 is 85109.6183636139
• The cube root of 7243647138 is 1934.8728414325

Scales and comparisons

• 7,243,647,138 seconds is equal to 230 years, 16 weeks, 6 days, 12 hours, 12 minutes, 18 seconds.
• To count from 1 to 7,243,647,138 would take you about four hundred sixty 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 7243647138 cubic inches would be around 161.2 feet tall.

Recreational maths with 7243647138

• 7243647138 backwards is 8317463427
• The number of decimal digits it has is: 10
• The sum of 7243647138's digits is 45
• More coming soon!