2138379453

Names of 2138379453

• Cardinal: 2138379453 can be written as Two billion, one hundred thirty-eight million, three hundred seventy-nine thousand, four hundred fifty-three.

Scientific notation

• Scientific notation: 2.138379453 × 10⁹

Factors of 2138379453

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1003

Divisors of 2138379453

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 19 21 27 49 57 63 97 133 147 171 189 291 399 441 513 679 873 877 931 1197 1323 1843 2037 2619 2631 2793 3591 4753 5529 6111 6139 7893 8379 12901 14259 16587 16663 18333 18417 23679 25137 38703 42777 42973 49761 49989 55251 85069 90307 116109 116641 128331 128919 149967 165753 255207 270921 348327 349923 386757 449901 595483 765621 812763 816487 1049769 1160271 1616311 1786449 2296863 2438289 2449461 3149307 4168381 4848933 5359347 7348383 11314177 12505143 14546799 16078041 22045149 33942531 37515429 43640397 79199239 101827593 112546287 237597717 305482779 712793151 2138379453
• Sum of all divisors σ(n): 3923606400
• Sum of proper divisors (its aliquot sum) s(n): 1785226947
• 2138379453 is a deficient number, because the sum of its proper divisors (1785226947) is less than itself. Its deficiency is 353152506

Bases of 2138379453

• Binary: 1111111011101010001010010111101₂
• Hexadecimal: 0x7F7514BD
• Base-36: ZD4W59

Squares and roots of 2138379453

• 2138379453 squared (2138379453²) is 4572666685012579209
• 2138379453 cubed (2138379453³) is 9778096484648522427060592677
• The square root of 2138379453 is 46242.6151185247
• The cube root of 2138379453 is 1288.3333750309

Scales and comparisons

• 2,138,379,453 seconds is equal to 67 years, 51 weeks, 4 days, 18 hours, 17 minutes, 33 seconds.
• To count from 1 to 2,138,379,453 would take you about one hundred thirty-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 2138379453 cubic inches would be around 107.4 feet tall.

Recreational maths with 2138379453

• 2138379453 backwards is 3549738312
• The number of decimal digits it has is: 10
• The sum of 2138379453's digits is 45
• More coming soon!