18319897408

Names of 18319897408

• Cardinal: 18319897408 can be written as Eighteen billion, three hundred nineteen million, eight hundred ninety-seven thousand, four hundred eight.

Scientific notation

• Scientific notation: 1.8319897408 × 10¹⁰

Factors of 18319897408

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 73777

Divisors of 18319897408

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 8 16 17 32 34 64 68 136 229 272 458 544 916 1088 1832 3664 3893 7328 7786 14656 15572 31144 62288 73529 124576 147058 249152 294116 588232 1176464 1249993 2352928 2499986 4705856 4999972 9999944 16838141 19999888 33676282 39999776 67352564 79999552 134705128 269410256 286248397 538820512 572496794 1077641024 1144993588 2289987176 4579974352 9159948704 18319897408
• Sum of all divisors σ(n): 38660603400
• Sum of proper divisors (its aliquot sum) s(n): 20340705992
• 18319897408 is an abundant number, because the sum of its proper divisors (20340705992) is greater than itself. Its abundance is 2020808584

Bases of 18319897408

• Binary: 10001000011111100110111001101000000₂
• Hexadecimal: 0x443F37340
• Base-36: 8EZ6ZB4

Squares and roots of 18319897408

• 18319897408 squared (18319897408²) is 335618641039645118464
• 18319897408 cubed (18319897408³) is 6148499072058677030988486541312
• The square root of 18319897408 is 135351.0155410737
• The cube root of 18319897408 is 2636.1756594993

Scales and comparisons

• 18,319,897,408 seconds is equal to 582 years, 26 weeks, 5 days, 20 hours, 23 minutes, 28 seconds.
• To count from 1 to 18,319,897,408 would take you about one thousand, one hundred sixty-five 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 18319897408 cubic inches would be around 219.7 feet tall.

Recreational maths with 18319897408

• 18319897408 backwards is 80479891381
• The number of decimal digits it has is: 11
• The sum of 18319897408's digits is 58
• More coming soon!