18499231938

Names of 18499231938

• Cardinal: 18499231938 can be written as Eighteen billion, four hundred ninety-nine million, two hundred thirty-one thousand, nine hundred thirty-eight.

Scientific notation

• Scientific notation: 1.8499231938 × 10¹⁰

Factors of 18499231938

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 37203

Divisors of 18499231938

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 11 17 22 33 34 51 66 102 187 374 449 561 898 1122 1347 2694 4939 7633 9878 14817 15266 22899 29634 36721 45798 73442 83963 110163 167926 220326 251889 403931 503778 624257 807862 1211793 1248514 1872771 2423586 3745542 6866827 13733654 16487729 20600481 32975458 41200962 49463187 98926374 181365019 280291393 362730038 544095057 560582786 840874179 1088190114 1681748358 3083205323 6166410646 9249615969 18499231938
• Sum of all divisors σ(n): 42832540800
• Sum of proper divisors (its aliquot sum) s(n): 24333308862
• 18499231938 is an abundant number, because the sum of its proper divisors (24333308862) is greater than itself. Its abundance is 5834076924

Bases of 18499231938

• Binary: 10001001110101000111110000011000010₂
• Hexadecimal: 0x44EA3E0C2
• Base-36: 8HXYQPU

Squares and roots of 18499231938

• 18499231938 squared (18499231938²) is 342221582295919235844
• 18499231938 cubed (18499231938³) is 6330836425081564494793879185672
• The square root of 18499231938 is 136011.8816059833
• The cube root of 18499231938 is 2644.7496347629

Scales and comparisons

• 18,499,231,938 seconds is equal to 588 years, 11 weeks, 2 days, 11 hours, 32 minutes, 18 seconds.
• To count from 1 to 18,499,231,938 would take you about one thousand, one hundred seventy-six 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 18499231938 cubic inches would be around 220.4 feet tall.

Recreational maths with 18499231938

• 18499231938 backwards is 83913299481
• The number of decimal digits it has is: 11
• The sum of 18499231938's digits is 57
• More coming soon!