138911709125

Names of 138911709125

• Cardinal: 138911709125 can be written as One hundred thirty-eight billion, nine hundred eleven million, seven hundred nine thousand, one hundred twenty-five.

Scientific notation

• Scientific notation: 1.38911709125 × 10¹¹

Factors of 138911709125

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 116

Divisors of 138911709125

• Number of divisors d(n): 96
• Complete list of divisors:
  1 5 7 25 31 35 73 125 155 175 217 365 511 775 875 961 1085 1825 2263 2555 3875 4805 5329 5425 6727 9125 11315 12775 15841 24025 26645 27125 29791 33635 37303 56575 63875 70153 79205 120125 133225 148955 165199 168175 186515 208537 282875 350765 396025 491071 666125 744775 825995 840875 932575 1042685 1156393 1753825 1980125 2174743 2455355 3723875 4129975 4662875 5121169 5213425 5781965 8769125 10873715 12276775 15223201 20649875 25605845 26067125 28909825 35848183 54368575 61383875 76116005 128029225 144549125 158756239 179240915 271842875 380580025 640146125 793781195 896204575 1111293673 1902900125 3968905975 4481022875 5556468365 19844529875 27782341825 138911709125
• Sum of all divisors σ(n): 207574788096
• Sum of proper divisors (its aliquot sum) s(n): 68663078971
• 138911709125 is a deficient number, because the sum of its proper divisors (68663078971) is less than itself. Its deficiency is 70248630154

Bases of 138911709125

• Binary: 10000001010111110010000111011111000101₂
• Hexadecimal: 0x2057C877C5
• Base-36: 1RTCG0QT

Squares and roots of 138911709125

• 138911709125 squared (138911709125²) is 19296462932028608265625
• 138911709125 cubed (138911709125³) is 2680504645955302677573070736328125
• The square root of 138911709125 is 372708.6115519737
• The cube root of 138911709125 is 5179.0044588415

Scales and comparisons

• 138,911,709,125 seconds is equal to 4,416 years, 50 weeks, 9 hours, 52 minutes, 5 seconds.
• To count from 1 to 138,911,709,125 would take you about eight thousand, eight hundred thirty-three 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 138911709125 cubic inches would be around 431.6 feet tall.

Recreational maths with 138911709125

• 138911709125 backwards is 521907119831
• The number of decimal digits it has is: 12
• The sum of 138911709125's digits is 47
• More coming soon!