18361406697390

Names of 18361406697390

• Cardinal: 18361406697390 can be written as Eighteen trillion, three hundred sixty-one billion, four hundred six million, six hundred ninety-seven thousand, three hundred ninety.

Scientific notation

• Scientific notation: 1.836140669739 × 10¹³

Factors of 18361406697390

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1057782

Divisors of 18361406697390

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 30 45 90 253741 507482 761223 804031 1268705 1522446 1608062 2283669 2412093 2537410 3806115 4020155 4567338 4824186 7236279 7612230 8040310 11418345 12060465 14472558 22836690 24120930 36181395 72362790 204015629971 408031259942 612046889913 1020078149855 1224093779826 1836140669739 2040156299710 3060234449565 3672281339478 6120468899130 9180703348695 18361406697390
• Sum of all divisors σ(n): 47739904932096
• Sum of proper divisors (its aliquot sum) s(n): 29378498234706
• 18361406697390 is an abundant number, because the sum of its proper divisors (29378498234706) is greater than itself. Its abundance is 11017091537316

Bases of 18361406697390

• Binary: 100001011001100011001000111111010111110101110₂
• Hexadecimal: 0x10B3191FAFAE
• Base-36: 6IB43GXBI

Squares and roots of 18361406697390

• 18361406697390 squared (18361406697390²) is 337141255906958347032812100
• 18361406697390 cubed (18361406697390³) is 6190387714176500891912039927025430419000
• The square root of 18361406697390 is 4285021.2015099761
• The cube root of 18361406697390 is 26381.6517639807

Scales and comparisons

• 18,361,406,697,390 seconds is equal to 583,835 years, 48 weeks, 5 days, 5 hours, 16 minutes, 30 seconds.
• To count from 1 to 18,361,406,697,390 would take you about one million, four hundred fifty-nine thousand, five hundred eighty-nine 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 18361406697390 cubic inches would be around 2198.5 feet tall.

Recreational maths with 18361406697390

• 18361406697390 backwards is 09379660416381
• The number of decimal digits it has is: 14
• The sum of 18361406697390's digits is 63
• More coming soon!