138400457125

Names of 138400457125

• Cardinal: 138400457125 can be written as One hundred thirty-eight billion, four hundred million, four hundred fifty-seven thousand, one hundred twenty-five.

Scientific notation

• Scientific notation: 1.38400457125 × 10¹¹

Factors of 138400457125

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3402

Divisors of 138400457125

• Number of divisors d(n): 96
• Complete list of divisors:
  1 5 7 25 31 35 49 125 155 175 217 245 343 775 875 961 1085 1225 1519 1715 3359 3875 4805 5425 6125 6727 7595 8575 10633 16795 23513 24025 27125 33635 37975 42875 47089 53165 83975 104129 117565 120125 164591 168175 189875 235445 265825 329623 419875 520645 587825 728903 822955 840875 1152137 1177225 1329125 1648115 2603225 2939125 3227999 3644515 4114775 5102321 5760685 5886125 8240575 13016125 16139995 18222575 20573875 22595993 25511605 28803425 35716247 41202875 80699975 91112875 112979965 127558025 144017125 158171951 178581235 403499875 564899825 637790125 790859755 892906175 1107203657 2824499125 3954298775 4464530875 5536018285 19771493875 27680091425 138400457125
• Sum of all divisors σ(n): 208196352000
• Sum of proper divisors (its aliquot sum) s(n): 69795894875
• 138400457125 is a deficient number, because the sum of its proper divisors (69795894875) is less than itself. Its deficiency is 68604562250

Bases of 138400457125

• Binary: 10000000111001010011110110000110100101₂
• Hexadecimal: 0x20394F61A5
• Base-36: 1RKW246D

Squares and roots of 138400457125

• 138400457125 squared (138400457125²) is 19154686532408963265625
• 138400457125 cubed (138400457125³) is 2651017372171481643409832798828125
• The square root of 138400457125 is 372022.1191340645
• The cube root of 138400457125 is 5172.6430288297

Scales and comparisons

• 138,400,457,125 seconds is equal to 4,400 years, 36 weeks, 5 days, 3 hours, 25 minutes, 25 seconds.
• To count from 1 to 138,400,457,125 would take you about eight thousand, eight hundred one 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 138400457125 cubic inches would be around 431.1 feet tall.

Recreational maths with 138400457125

• 138400457125 backwards is 521754004831
• The number of decimal digits it has is: 12
• The sum of 138400457125's digits is 40
• More coming soon!