1381389405

Names of 1381389405

• Cardinal: 1381389405 can be written as One billion, three hundred eighty-one million, three hundred eighty-nine thousand, four hundred five.

Scientific notation

• Scientific notation: 1.381389405 × 10⁹

Factors of 1381389405

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1898

Divisors of 1381389405

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 11 15 33 43 55 113 129 165 215 339 473 565 645 1243 1419 1695 1723 2365 3729 4859 5169 6215 7095 8615 14577 18645 18953 24295 25845 53449 56859 72885 74089 94765 160347 194699 222267 267245 284295 370445 584097 801735 814979 973495 1111335 2141689 2444937 2920485 4074895 6425067 8372057 10708445 12224685 25116171 32125335 41860285 92092627 125580855 276277881 460463135 1381389405
• Sum of all divisors σ(n): 2490504192
• Sum of proper divisors (its aliquot sum) s(n): 1109114787
• 1381389405 is a deficient number, because the sum of its proper divisors (1109114787) is less than itself. Its deficiency is 272274618

Bases of 1381389405

• Binary: 1010010010101100101010001011101₂
• Hexadecimal: 0x5256545D
• Base-36: MUFYVX

Squares and roots of 1381389405

• 1381389405 squared (1381389405²) is 1908236688246254025
• 1381389405 cubed (1381389405³) is 2636017943375663341073605125
• The square root of 1381389405 is 37167.0472999941
• The cube root of 1381389405 is 1113.7097974985

Scales and comparisons

• 1,381,389,405 seconds is equal to 43 years, 48 weeks, 7 hours, 16 minutes, 45 seconds.
• To count from 1 to 1,381,389,405 would take you about eighty-seven 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 1381389405 cubic inches would be around 92.8 feet tall.

Recreational maths with 1381389405

• 1381389405 backwards is 5049831831
• The number of decimal digits it has is: 10
• The sum of 1381389405's digits is 42
• More coming soon!