18406349208768

Names of 18406349208768

• Cardinal: 18406349208768 can be written as Eighteen trillion, four hundred six billion, three hundred forty-nine million, two hundred eight thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8406349208768 × 10¹³

Factors of 18406349208768

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 309628

Divisors of 18406349208768

• Number of divisors d(n): 42
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 96 192 309623 619246 928869 1238492 1857738 2476984 3715476 4953968 7430952 9907936 14861904 19815872 29723808 59447616 95866402129 191732804258 287599206387 383465608516 575198412774 766931217032 1150396825548 1533862434064 2300793651096 3067724868128 4601587302192 6135449736256 9203174604384 18406349208768
• Sum of all divisors σ(n): 48700289570524
• Sum of proper divisors (its aliquot sum) s(n): 30293940361756
• 18406349208768 is an abundant number, because the sum of its proper divisors (30293940361756) is greater than itself. Its abundance is 11887591152988

Bases of 18406349208768

• Binary: 100001011110110001111111001111111110011000000₂
• Hexadecimal: 0x10BD8FE7FCC0
• Base-36: 6IVRD2X1C

Squares and roots of 18406349208768

• 18406349208768 squared (18406349208768²) is 338793691195114379648077824
• 18406349208768 cubed (18406349208768³) is 6235954989864783690142656418074487160832
• The square root of 18406349208768 is 4290262.1375351879
• The cube root of 18406349208768 is 26403.1586788999

Scales and comparisons

• 18,406,349,208,768 seconds is equal to 585,264 years, 50 weeks, 3 days, 4 hours, 12 minutes, 48 seconds.
• To count from 1 to 18,406,349,208,768 would take you about one million, four hundred sixty-three thousand, one hundred sixty-two 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 18406349208768 cubic inches would be around 2200.3 feet tall.

Recreational maths with 18406349208768

• 18406349208768 backwards is 86780294360481
• The number of decimal digits it has is: 14
• The sum of 18406349208768's digits is 66
• More coming soon!