138941976642

Names of 138941976642

• Cardinal: 138941976642 can be written as One hundred thirty-eight billion, nine hundred forty-one million, nine hundred seventy-six thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 1.38941976642 × 10¹¹

Factors of 138941976642

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 686631

Divisors of 138941976642

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 7 14 21 42 61 79 122 158 183 237 366 427 474 553 854 1106 1281 1659 2562 3318 4819 9638 14457 28914 33733 67466 101199 202398 686479 1372958 2059437 4118874 4805353 9610706 14416059 28832118 41875219 54231841 83750438 108463682 125625657 162695523 251251314 293126533 325391046 379622887 586253066 759245774 879379599 1138868661 1758759198 2277737322 3308142301 6616284602 9924426903 19848853806 23156996107 46313992214 69470988321 138941976642
• Sum of all divisors σ(n): 326874316800
• Sum of proper divisors (its aliquot sum) s(n): 187932340158
• 138941976642 is an abundant number, because the sum of its proper divisors (187932340158) is greater than itself. Its abundance is 48990363516

Bases of 138941976642

• Binary: 10000001011001100101100101000001000010₂
• Hexadecimal: 0x2059965042
• Base-36: 1RTUGRB6

Squares and roots of 138941976642

• 138941976642 squared (138941976642²) is 19304872873186073596164
• 138941976642 cubed (138941976642³) is 2682257195822998865717911428801288
• The square root of 138941976642 is 372749.2141400167
• The cube root of 138941976642 is 5179.3805831745

Scales and comparisons

• 138,941,976,642 seconds is equal to 4,417 years, 48 weeks, 17 hours, 30 minutes, 42 seconds.
• To count from 1 to 138,941,976,642 would take you about eight thousand, eight 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 138941976642 cubic inches would be around 431.6 feet tall.

Recreational maths with 138941976642

• 138941976642 backwards is 246679149831
• The number of decimal digits it has is: 12
• The sum of 138941976642's digits is 60
• More coming soon!