18135197568

Names of 18135197568

• Cardinal: 18135197568 can be written as Eighteen billion, one hundred thirty-five million, one hundred ninety-seven thousand, five hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8135197568 × 10¹⁰

Factors of 18135197568

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1749156

Divisors of 18135197568

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 288 324 384 432 576 648 864 1152 1296 1728 2592 3456 5184 10368 1749151 3498302 5247453 6996604 10494906 13993208 15742359 20989812 27986416 31484718 41979624 47227077 55972832 62969436 83959248 94454154 111945664 125938872 141681231 167918496 188908308 223891328 251877744 283362462 335836992 377816616 503755488 566724924 671673984 755633232 1007510976 1133449848 1511266464 2015021952 2266899696 3022532928 4533799392 6045065856 9067598784 18135197568
• Sum of all divisors σ(n): 53970084960
• Sum of proper divisors (its aliquot sum) s(n): 35834887392
• 18135197568 is an abundant number, because the sum of its proper divisors (35834887392) is greater than itself. Its abundance is 17699689824

Bases of 18135197568

• Binary: 10000111000111100010010011110000000₂
• Hexadecimal: 0x438F12780
• Base-36: 8BX8800

Squares and roots of 18135197568

• 18135197568 squared (18135197568²) is 328885390830393114624
• 18135197568 cubed (18135197568³) is 5964401539938074712813110034432
• The square root of 18135197568 is 134666.9876695845
• The cube root of 18135197568 is 2627.2864767099

Scales and comparisons

• 18,135,197,568 seconds is equal to 576 years, 33 weeks, 3 days, 2 hours, 52 minutes, 48 seconds.
• To count from 1 to 18,135,197,568 would take you about one thousand, one 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 18135197568 cubic inches would be around 218.9 feet tall.

Recreational maths with 18135197568

• 18135197568 backwards is 86579153181
• 18135197568 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18135197568's digits is 54
• More coming soon!