138381129120

Names of 138381129120

• Cardinal: 138381129120 can be written as One hundred thirty-eight billion, three hundred eighty-one million, one hundred twenty-nine thousand, one hundred twenty.

Scientific notation

• Scientific notation: 1.3838112912 × 10¹¹

Factors of 138381129120

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 22176486

Divisors of 138381129120

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 96 104 120 130 156 160 195 208 240 260 312 390 416 480 520 624 780 1040 1248 1560 2080 3120 6240 22176463 44352926 66529389 88705852 110882315 133058778 177411704 221764630 266117556 288294019 332646945 354823408 443529260 532235112 576588038 665293890 709646816 864882057 887058520 1064470224 1153176076 1330587780 1441470095 1729764114 1774117040 2128940448 2306352152 2661175560 2882940190 3459528228 3548234080 4324410285 4612704304 5322351120 5765880380 6919056456 8648820570 9225408608 10644702240 11531760760 13838112912 17297641140 23063521520 27676225824 34595282280 46127043040 69190564560 138381129120
• Sum of all divisors σ(n): 469431389952
• Sum of proper divisors (its aliquot sum) s(n): 331050260832
• 138381129120 is an abundant number, because the sum of its proper divisors (331050260832) is greater than itself. Its abundance is 192669131712

Bases of 138381129120

• Binary: 10000000111000001010000111010110100000₂
• Hexadecimal: 0x20382875A0
• Base-36: 1RKKJULC

Squares and roots of 138381129120

• 138381129120 squared (138381129120²) is 19149336896526111974400
• 138381129120 cubed (138381129120³) is 2649906861640559980581024534528000
• The square root of 138381129120 is 371996.1412703095
• The cube root of 138381129120 is 5172.4022263383

Scales and comparisons

• 138,381,129,120 seconds is equal to 4,400 years, 4 weeks, 5 days, 10 hours, 32 minutes.
• To count from 1 to 138,381,129,120 would take you about eight thousand, eight hundred 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 138381129120 cubic inches would be around 431 feet tall.

Recreational maths with 138381129120

• 138381129120 backwards is 021921183831
• 138381129120 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138381129120's digits is 39
• More coming soon!