121387160125

Names of 121387160125

• Cardinal: 121387160125 can be written as One hundred twenty-one billion, three hundred eighty-seven million, one hundred sixty thousand, one hundred twenty-five.

Scientific notation

• Scientific notation: 1.21387160125 × 10¹¹

Factors of 121387160125

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 80509

Divisors of 121387160125

• Number of divisors d(n): 64
• Complete list of divisors:
  1 5 7 11 25 35 55 77 125 157 175 275 385 785 875 1099 1375 1727 1925 3925 5495 8635 9625 12089 19625 27475 43175 60445 80329 137375 215875 302225 401645 562303 883619 1511125 2008225 2811515 4418095 6185333 10041125 12611653 14057575 22090475 30926665 63058265 70287875 88281571 110452375 138728183 154633325 315291325 441407855 693640915 773166625 971097281 1576456625 2207039275 3468204575 4855486405 11035196375 17341022875 24277432025 121387160125
• Sum of all divisors σ(n): 190077488640
• Sum of proper divisors (its aliquot sum) s(n): 68690328515
• 121387160125 is a deficient number, because the sum of its proper divisors (68690328515) is less than itself. Its deficiency is 52696831610

Bases of 121387160125

• Binary: 1110001000011001111010001001000111101₂
• Hexadecimal: 0x1C433D123D
• Base-36: 1JRIS471

Squares and roots of 121387160125

• 121387160125 squared (121387160125²) is 14734842643212390015625
• 121387160125 cubed (121387160125³) is 1788620703348300631210623126953125
• The square root of 121387160125 is 348406.6017241923
• The cube root of 121387160125 is 4951.3571101255

Scales and comparisons

• 121,387,160,125 seconds is equal to 3,859 years, 38 weeks, 1 day, 23 hours, 35 minutes, 25 seconds.
• To count from 1 to 121,387,160,125 would take you about seven thousand, seven hundred nineteen 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 121387160125 cubic inches would be around 412.6 feet tall.

Recreational maths with 121387160125

• 121387160125 backwards is 521061783121
• The number of decimal digits it has is: 12
• The sum of 121387160125's digits is 37
• More coming soon!