138581743806

Names of 138581743806

• Cardinal: 138581743806 can be written as One hundred thirty-eight billion, five hundred eighty-one million, seven hundred forty-three thousand, eight hundred six.

Scientific notation

• Scientific notation: 1.38581743806 × 10¹¹

Factors of 138581743806

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 455

Divisors of 138581743806

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 9 11 18 22 27 33 54 66 81 99 162 198 243 297 439 486 594 729 878 891 1317 1458 1782 2187 2634 2673 3951 4374 4829 5346 6561 7902 8019 9658 11853 13122 14487 16038 19683 23706 24057 28974 35559 39366 43461 48114 59049 71118 72171 86922 106677 118098 130383 144342 177147 213354 216513 260766 320031 354294 391149 433026 531441 640062 649539 782298 960093 1062882 1173447 1299078 1594323 1920186 1948617 2346894 2880279 3188646 3520341 3897234 4782969 5760558 5845851 7040682 8640837 9565938 10561023 11691702 14348907 17281674 17537553 21122046 25922511 28697814 31683069 35075106 51845022 52612659 63366138 77767533 95049207 105225318 155535066 157837977 190098414 233302599 285147621 315675954 466605198 570295242 699907797 855442863 1399815594 1710885726 2099723391 2566328589 4199446782 5132657178 6299170173 7698985767 12598340346 15397971534 23096957301 46193914602 69290871903 138581743806
• Sum of all divisors σ(n): 340930022400
• Sum of proper divisors (its aliquot sum) s(n): 202348278594
• 138581743806 is an abundant number, because the sum of its proper divisors (202348278594) is greater than itself. Its abundance is 63766534788

Bases of 138581743806

• Binary: 10000001000100000111011001100010111110₂
• Hexadecimal: 0x20441D98BE
• Base-36: 1RNVZPVI

Squares and roots of 138581743806

• 138581743806 squared (138581743806²) is 19204899716311819365636
• 138581743806 cubed (138581743806³) is 2661448492305846630538317592250616
• The square root of 138581743806 is 372265.6898050101
• The cube root of 138581743806 is 5174.9005409997

Scales and comparisons

• 138,581,743,806 seconds is equal to 4,406 years, 24 weeks, 3 days, 8 hours, 50 minutes, 6 seconds.
• To count from 1 to 138,581,743,806 would take you about eight thousand, eight hundred twelve 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 138581743806 cubic inches would be around 431.2 feet tall.

Recreational maths with 138581743806

• 138581743806 backwards is 608347185831
• 138581743806 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138581743806's digits is 54
• More coming soon!