138729812184

Names of 138729812184

• Cardinal: 138729812184 can be written as One hundred thirty-eight billion, seven hundred twenty-nine million, eight hundred twelve thousand, one hundred eighty-four.

Scientific notation

• Scientific notation: 1.38729812184 × 10¹¹

Factors of 138729812184

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 25348

Divisors of 138729812184

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 25343 50686 76029 101372 152058 202744 228087 304116 456174 608232 684261 912348 1368522 1824696 2737044 5474088 642267649 1284535298 1926802947 2569070596 3853605894 5138141192 5780408841 7707211788 11560817682 15414423576 17341226523 23121635364 34682453046 46243270728 69364906092 138729812184
• Sum of all divisors σ(n): 385375795800
• Sum of proper divisors (its aliquot sum) s(n): 246645983616
• 138729812184 is an abundant number, because the sum of its proper divisors (246645983616) is greater than itself. Its abundance is 107916171432

Bases of 138729812184

• Binary: 10000001001100111100001111000011011000₂
• Hexadecimal: 0x204CF0F0D8
• Base-36: 1RQC5C60

Squares and roots of 138729812184

• 138729812184 squared (138729812184²) is 19245960788607914849856
• 138729812184 cubed (138729812184³) is 2669988525504204553936387439445504
• The square root of 138729812184 is 372464.5113081245
• The cube root of 138729812184 is 5176.7429346967

Scales and comparisons

• 138,729,812,184 seconds is equal to 4,411 years, 9 weeks, 2 days, 2 hours, 56 minutes, 24 seconds.
• To count from 1 to 138,729,812,184 would take you about eight thousand, eight hundred twenty-two 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 138729812184 cubic inches would be around 431.4 feet tall.

Recreational maths with 138729812184

• 138729812184 backwards is 481218927831
• 138729812184 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138729812184's digits is 54
• More coming soon!