9138388545

Names of 9138388545

• Cardinal: 9138388545 can be written as Nine billion, one hundred thirty-eight million, three hundred eighty-eight thousand, five hundred forty-five.

Scientific notation

• Scientific notation: 9.138388545 × 10⁹

Factors of 9138388545

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2833

Divisors of 9138388545

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 9 11 13 15 27 33 39 45 55 65 99 117 135 143 165 169 195 297 351 429 495 507 585 715 845 1287 1485 1521 1755 1859 2145 2197 2535 2801 3861 4563 5577 6435 6591 7605 8403 9295 10985 14005 16731 19305 19773 22815 24167 25209 27885 30811 32955 36413 42015 50193 59319 72501 75627 83655 92433 98865 109239 120835 126045 154055 182065 217503 250965 277299 296595 327717 362505 378135 400543 462165 473369 546195 652509 831897 983151 1087515 1201629 1386495 1420107 1638585 2002715 2366845 3262545 3604887 4159485 4260321 4915755 5207059 6008145 6153797 7100535 10814661 12780963 15621177 18024435 18461391 21301605 26035295 30768985 46863531 54073305 55384173 63904815 67691767 78105885 92306955 140590593 166152519 203075301 234317655 276920865 338458835 609225903 702952965 830762595 1015376505 1827677709 3046129515 9138388545
• Sum of all divisors σ(n): 19206028800
• Sum of proper divisors (its aliquot sum) s(n): 10067640255
• 9138388545 is an abundant number, because the sum of its proper divisors (10067640255) is greater than itself. Its abundance is 929251710

Bases of 9138388545

• Binary: 1000100000101100001011111001000001₂
• Hexadecimal: 0x220B0BE41
• Base-36: 474RDQ9

Squares and roots of 9138388545

• 9138388545 squared (9138388545²) is 83510145199387217025
• 9138388545 cubed (9138388545³) is 763148154281366885080688978625
• The square root of 9138388545 is 95594.9190333879
• The cube root of 9138388545 is 2090.6911128321

Scales and comparisons

• 9,138,388,545 seconds is equal to 290 years, 29 weeks, 5 days, 9 hours, 15 minutes, 45 seconds.
• To count from 1 to 9,138,388,545 would take you about five hundred eighty-one 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 9138388545 cubic inches would be around 174.2 feet tall.

Recreational maths with 9138388545

• 9138388545 backwards is 5458838319
• The number of decimal digits it has is: 10
• The sum of 9138388545's digits is 54
• More coming soon!