18997748136

Names of 18997748136

• Cardinal: 18997748136 can be written as Eighteen billion, nine hundred ninety-seven million, seven hundred forty-eight thousand, one hundred thirty-six.

Scientific notation

• Scientific notation: 1.8997748136 × 10¹⁰

Factors of 18997748136

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 19656

Divisors of 18997748136

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 36 72 107 127 214 254 321 381 428 508 642 762 856 963 1016 1143 1284 1524 1926 2286 2568 3048 3852 4572 7704 9144 13589 19417 27178 38834 40767 54356 58251 77668 81534 108712 116502 122301 155336 163068 174753 233004 244602 326136 349506 466008 489204 699012 978408 1398024 2077619 2465959 4155238 4931918 6232857 7397877 8310476 9863836 12465714 14795754 16620952 18698571 19727672 22193631 24931428 29591508 37397142 44387262 49862856 59183016 74794284 88774524 149588568 177549048 263857613 527715226 791572839 1055430452 1583145678 2110860904 2374718517 3166291356 4749437034 6332582712 9498874068 18997748136
• Sum of all divisors σ(n): 52344714240
• Sum of proper divisors (its aliquot sum) s(n): 33346966104
• 18997748136 is an abundant number, because the sum of its proper divisors (33346966104) is greater than itself. Its abundance is 14349217968

Bases of 18997748136

• Binary: 10001101100010110101010000110101000₂
• Hexadecimal: 0x46C5AA1A8
• Base-36: 8Q6ROA0

Squares and roots of 18997748136

• 18997748136 squared (18997748136²) is 360914434238891474496
• 18997748136 cubed (18997748136³) is 6856561520317395088312675539456
• The square root of 18997748136 is 137832.3189096085
• The cube root of 18997748136 is 2668.2962256515

Scales and comparisons

• 18,997,748,136 seconds is equal to 604 years, 3 weeks, 4 days, 8 hours, 15 minutes, 36 seconds.
• To count from 1 to 18,997,748,136 would take you about one thousand, two hundred eight 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 18997748136 cubic inches would be around 222.4 feet tall.

Recreational maths with 18997748136

• 18997748136 backwards is 63184779981
• The number of decimal digits it has is: 11
• The sum of 18997748136's digits is 63
• More coming soon!