18002121031658

Names of 18002121031658

• Cardinal: 18002121031658 can be written as Eighteen trillion, two billion, one hundred twenty-one million, thirty-one thousand, six hundred fifty-eight.

Scientific notation

• Scientific notation: 1.8002121031658 × 10¹³

Factors of 18002121031658

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 34890

Divisors of 18002121031658

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 193 386 421 842 3613 7226 30661 61322 81253 162506 697309 1394618 1521073 3042146 5917573 11835146 12908281 25816562 110778193 221556386 293567089 587134178 2491298233 4982596466 21380191249 42760382498 46637619253 93275238506 9001060515829 18002121031658
• Sum of all divisors σ(n): 27215985390672
• Sum of proper divisors (its aliquot sum) s(n): 9213864359014
• 18002121031658 is a deficient number, because the sum of its proper divisors (9213864359014) is less than itself. Its deficiency is 8788256672644

Bases of 18002121031658

• Binary: 100000101111101110010000001110111111111101010₂
• Hexadecimal: 0x105F72077FEA
• Base-36: 6DQ2627E2

Squares and roots of 18002121031658

• 18002121031658 squared (18002121031658²) is 324076361638463294238228964
• 18002121031658 cubed (18002121031658³) is 5834061885714983933685671604626496542312
• The square root of 18002121031658 is 4242890.6457341085
• The cube root of 18002121031658 is 26208.4432860043

Scales and comparisons

• 18,002,121,031,658 seconds is equal to 572,411 years, 39 weeks, 5 days, 7 hours, 27 minutes, 38 seconds.
• To count from 1 to 18,002,121,031,658 would take you about one million, four hundred thirty-one thousand and twenty-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 18002121031658 cubic inches would be around 2184 feet tall.

Recreational maths with 18002121031658

• 18002121031658 backwards is 85613012120081
• The number of decimal digits it has is: 14
• The sum of 18002121031658's digits is 38
• More coming soon!