138439805625

Names of 138439805625

• Cardinal: 138439805625 can be written as One hundred thirty-eight billion, four hundred thirty-nine million, eight hundred five thousand, six hundred twenty-five.

Scientific notation

• Scientific notation: 1.38439805625 × 10¹¹

Factors of 138439805625

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 60

Divisors of 138439805625

• Number of divisors d(n): 225
• Complete list of divisors:
  1 3 5 9 11 15 25 33 41 45 55 75 99 121 123 125 165 205 225 275 363 369 375 451 495 605 615 625 825 1025 1089 1125 1331 1353 1375 1681 1815 1845 1875 2255 2475 3025 3075 3993 4059 4125 4961 5043 5125 5445 5625 6655 6765 6875 8405 9075 9225 11275 11979 12375 14641 14883 15125 15129 15375 18491 19965 20295 20625 24805 25215 25625 27225 33275 33825 42025 43923 44649 45375 46125 54571 55473 56375 59895 61875 73205 74415 75625 75645 76875 92455 99825 101475 124025 126075 131769 136125 163713 166375 166419 169125 203401 210125 219615 223245 226875 230625 272855 277365 281875 299475 366025 372075 378225 462275 491139 499125 507375 600281 610203 620125 630375 658845 680625 818565 831875 832095 845625 1017005 1050625 1098075 1116225 1364275 1386825 1497375 1800843 1830125 1830609 1860375 1891125 2237411 2311375 2455695 2495625 2536875 3001405 3051015 3100625 3151875 3294225 4092825 4160475 5085025 5402529 5490375 5581125 6712233 6821375 6934125 7486875 9004215 9150625 9153045 9301875 9455625 11187055 11556875 12278475 15007025 15255075 16471125 20136699 20464125 20802375 24611521 25425125 27012645 27451875 27905625 33561165 34106875 34670625 45021075 45765225 55935275 61392375 73834563 75035125 76275375 82355625 100683495 102320625 104011875 123057605 127125625 135063225 167805825 221503689 225105375 228826125 279676375 306961875 369172815 375175625 381376875 503417475 615288025 675316125 839029125 1107518445 1125526875 1144130625 1398381875 1845864075 2517087375 3076440125 3376580625 4195145625 5537592225 9229320375 12585436875 15382200625 27687961125 46146601875 138439805625
• Sum of all divisors σ(n): 281734733995
• Sum of proper divisors (its aliquot sum) s(n): 143294928370
• 138439805625 is an abundant number, because the sum of its proper divisors (143294928370) is greater than itself. Its abundance is 4855122745

Bases of 138439805625

• Binary: 10000000111011101001111100101010111001₂
• Hexadecimal: 0x203BA7CAB9
• Base-36: 1RLJHHO9

Squares and roots of 138439805625

• 138439805625 squared (138439805625²) is 19165579781487781640625
• 138439805625 cubed (138439805625³) is 2653279139639598463640568603515625
• 138439805625 is a perfect square number. Its square root is 372075
• The cube root of 138439805625 is 5173.1331920909

Scales and comparisons

• 138,439,805,625 seconds is equal to 4,401 years, 49 weeks, 5 days, 13 hours, 33 minutes, 45 seconds.
• To count from 1 to 138,439,805,625 would take you about eight thousand, eight hundred 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 138439805625 cubic inches would be around 431.1 feet tall.

Recreational maths with 138439805625

• 138439805625 backwards is 526508934831
• The number of decimal digits it has is: 12
• The sum of 138439805625's digits is 54
• More coming soon!