13778348661

Names of 13778348661

• Cardinal: 13778348661 can be written as Thirteen billion, seven hundred seventy-eight million, three hundred forty-eight thousand, six hundred sixty-one.

Scientific notation

• Scientific notation: 1.3778348661 × 10¹⁰

Factors of 13778348661

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 8933

Divisors of 13778348661

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 11 21 33 49 63 77 99 147 231 331 441 539 693 993 1617 2317 2979 3641 4851 6951 8581 10923 16219 20853 25487 25743 32769 48657 60067 76461 77229 94391 145971 178409 180201 229383 283173 420469 535227 540603 660737 849519 1261407 1605681 1982211 2840311 3784221 4625159 5946633 8520933 13875477 19882177 25562799 31243421 41626431 59646531 93730263 139175239 178939593 218703947 281190789 417525717 656111841 1252577151 1530927629 1968335523 4592782887 13778348661
• Sum of all divisors σ(n): 25335299808
• Sum of proper divisors (its aliquot sum) s(n): 11556951147
• 13778348661 is a deficient number, because the sum of its proper divisors (11556951147) is less than itself. Its deficiency is 2221397514

Bases of 13778348661

• Binary: 1100110101010000001110101001110101₂
• Hexadecimal: 0x33540EA75
• Base-36: 6BV9TV9

Squares and roots of 13778348661

• 13778348661 squared (13778348661²) is 189842891824080492921
• 13778348661 cubed (13778348661³) is 2615721554364687307194280328781
• The square root of 13778348661 is 117381.2108516521
• The cube root of 13778348661 is 2397.3552266639

Scales and comparisons

• 13,778,348,661 seconds is equal to 438 years, 5 weeks, 4 days, 15 hours, 4 minutes, 21 seconds.
• To count from 1 to 13,778,348,661 would take you about eight hundred seventy-six 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 13778348661 cubic inches would be around 199.8 feet tall.

Recreational maths with 13778348661

• 13778348661 backwards is 16684387731
• The number of decimal digits it has is: 11
• The sum of 13778348661's digits is 54
• More coming soon!