138991679488

Names of 138991679488

• Cardinal: 138991679488 can be written as One hundred thirty-eight billion, nine hundred ninety-one million, six hundred seventy-nine thousand, four hundred eighty-eight.

Scientific notation

• Scientific notation: 1.38991679488 × 10¹¹

Factors of 138991679488

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 4935

Divisors of 138991679488

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 8 16 19 32 38 64 76 128 152 256 304 512 608 887 1024 1216 1774 2048 2432 3548 4027 4864 7096 8054 9728 14192 16108 16853 19456 28384 32216 33706 38912 56768 64432 67412 76513 113536 128864 134824 153026 227072 257728 269648 306052 454144 515456 539296 612104 908288 1030912 1078592 1224208 1816576 2061824 2157184 2448416 3571949 4123648 4314368 4896832 7143898 8247296 8628736 9793664 14287796 17257472 19587328 28575592 34514944 39174656 57151184 67867031 78349312 114302368 135734062 156698624 228604736 271468124 457209472 542936248 914418944 1085872496 1828837888 2171744992 3657675776 4343489984 7315351552 8686979968 17373959936 34747919872 69495839744 138991679488
• Sum of all divisors σ(n): 292945161600
• Sum of proper divisors (its aliquot sum) s(n): 153953482112
• 138991679488 is an abundant number, because the sum of its proper divisors (153953482112) is greater than itself. Its abundance is 14961802624

Bases of 138991679488

• Binary: 10000001011100100011001011100000000000₂
• Hexadecimal: 0x205C8CB800
• Base-36: 1RUO229S

Squares and roots of 138991679488

• 138991679488 squared (138991679488²) is 19318686966894919942144
• 138991679488 cubed (138991679488³) is 2685136747031661579173898351542272
• The square root of 138991679488 is 372815.8788034651
• The cube root of 138991679488 is 5179.9981053745

Scales and comparisons

• 138,991,679,488 seconds is equal to 4,419 years, 26 weeks, 1 day, 23 hours, 51 minutes, 28 seconds.
• To count from 1 to 138,991,679,488 would take you about eight thousand, eight hundred thirty-nine 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 138991679488 cubic inches would be around 431.7 feet tall.

Recreational maths with 138991679488

• 138991679488 backwards is 884976199831
• The number of decimal digits it has is: 12
• The sum of 138991679488's digits is 73
• More coming soon!