138298806405

Names of 138298806405

• Cardinal: 138298806405 can be written as One hundred thirty-eight billion, two hundred ninety-eight million, eight hundred six thousand, four hundred five.

Scientific notation

• Scientific notation: 1.38298806405 × 10¹¹

Factors of 138298806405

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5321

Divisors of 138298806405

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 9 15 27 45 135 163 489 815 1467 1987 2445 3163 4401 5961 7335 9489 9935 15815 17883 22005 28467 29805 47445 53649 85401 89415 142335 268245 323881 427005 515569 971643 1546707 1619405 2577845 2914929 4640121 4858215 6284881 7733535 8744787 13920363 14574645 18854643 23200605 31424405 43723935 56563929 69601815 94273215 169691787 282819645 848458935 1024435603 3073306809 5122178015 9219920427 15366534045 27659761281 46099602135 138298806405
• Sum of all divisors σ(n): 247575659520
• Sum of proper divisors (its aliquot sum) s(n): 109276853115
• 138298806405 is a deficient number, because the sum of its proper divisors (109276853115) is less than itself. Its deficiency is 29021953290

Bases of 138298806405

• Binary: 10000000110011010000000101000010000101₂
• Hexadecimal: 0x2033405085
• Base-36: 1RJ7JDZ9

Squares and roots of 138298806405

• 138298806405 squared (138298806405²) is 19126559853047669024025
• 138298806405 cubed (138298806405³) is 2645180398310284827590148768880125
• The square root of 138298806405 is 371885.4748507933
• The cube root of 138298806405 is 5171.3763382417

Scales and comparisons

• 138,298,806,405 seconds is equal to 4,397 years, 24 weeks, 4 days, 15 hours, 6 minutes, 45 seconds.
• To count from 1 to 138,298,806,405 would take you about eight thousand, seven hundred ninety-four 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 138298806405 cubic inches would be around 430.9 feet tall.

Recreational maths with 138298806405

• 138298806405 backwards is 504608892831
• The number of decimal digits it has is: 12
• The sum of 138298806405's digits is 54
• More coming soon!