138461398845

Names of 138461398845

• Cardinal: 138461398845 can be written as One hundred thirty-eight billion, four hundred sixty-one million, three hundred ninety-eight thousand, eight hundred forty-five.

Scientific notation

• Scientific notation: 1.38461398845 × 10¹¹

Factors of 138461398845

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3291

Divisors of 138461398845

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 7 11 15 21 33 35 55 77 105 127 165 231 337 381 385 635 889 1011 1155 1397 1685 1905 2359 2667 2801 3707 4191 4445 5055 6985 7077 8403 9779 11121 11795 13335 14005 18535 19607 20955 25949 29337 30811 35385 42015 42799 48895 55605 58821 77847 92433 98035 128397 129745 146685 154055 213995 215677 294105 299593 355727 389235 462165 470789 641985 647031 898779 943937 1067181 1078385 1412367 1497965 1778635 2353945 2490089 2831811 3235155 3295523 3912997 4493895 4719685 5335905 6607559 7061835 7470267 9886569 10383307 11738991 12450445 14159055 16477615 19564985 19822677 27390979 31149921 33037795 37351335 49432845 51916535 58694955 72683149 82172937 99113385 119879999 136954895 155749605 218049447 359639997 363415745 410864685 599399995 839159993 1090247235 1318679989 1798199985 2517479979 3956039967 4195799965 6593399945 9230759923 12587399895 19780199835 27692279769 46153799615 138461398845
• Sum of all divisors σ(n): 279304077312
• Sum of proper divisors (its aliquot sum) s(n): 140842678467
• 138461398845 is an abundant number, because the sum of its proper divisors (140842678467) is greater than itself. Its abundance is 2381279622

Bases of 138461398845

• Binary: 10000000111100111100010100011100111101₂
• Hexadecimal: 0x203CF1473D
• Base-36: 1RLWCB3X

Squares and roots of 138461398845

• 138461398845 squared (138461398845²) is 19171558970114167334025
• 138461398845 cubed (138461398845³) is 2654520873041415158421505864201125
• The square root of 138461398845 is 372104.0161634915
• The cube root of 138461398845 is 5173.4021388133

Scales and comparisons

• 138,461,398,845 seconds is equal to 4,402 years, 33 weeks, 3 days, 11 hours, 40 minutes, 45 seconds.
• To count from 1 to 138,461,398,845 would take you about eight thousand, eight hundred five 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 138461398845 cubic inches would be around 431.1 feet tall.

Recreational maths with 138461398845

• 138461398845 backwards is 548893164831
• The number of decimal digits it has is: 12
• The sum of 138461398845's digits is 60
• More coming soon!