138650789991

Names of 138650789991

• Cardinal: 138650789991 can be written as One hundred thirty-eight billion, six hundred fifty million, seven hundred eighty-nine thousand, nine hundred ninety-one.

Scientific notation

• Scientific notation: 1.38650789991 × 10¹¹

Factors of 138650789991

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 541

Divisors of 138650789991

• Number of divisors d(n): 120
• Complete list of divisors:
  1 3 7 17 21 23 49 51 69 119 147 161 289 357 391 483 491 833 867 1127 1173 1473 2023 2499 2737 3381 3437 4913 6069 6647 8211 8347 10311 11293 14161 14739 19159 19941 24059 25041 33879 34391 42483 46529 57477 58429 72177 79051 83521 103173 112999 139587 141899 175287 191981 237153 240737 250563 325703 338997 409003 425697 553357 575943 584647 722211 790993 977109 993293 1227009 1343867 1660071 1753941 1920983 2372979 2412283 2979879 3263677 4031601 4092529 5536951 5762949 6953051 7236849 9407069 9791031 12277587 13446881 16610853 16885981 20859153 22845739 28221207 40340643 41008811 50657943 55482509 68537217 94128167 118201867 123026433 159920173 166447527 282384501 287061677 354605601 388377563 479760519 861185031 943202653 1165132689 2009431739 2718642941 2829607959 6028295217 6602418571 8155928823 19807255713 46216929997 138650789991
• Sum of all divisors σ(n): 238910649984
• Sum of proper divisors (its aliquot sum) s(n): 100259859993
• 138650789991 is a deficient number, because the sum of its proper divisors (100259859993) is less than itself. Its deficiency is 38390929998

Bases of 138650789991

• Binary: 10000001001000001110110010100001100111₂
• Hexadecimal: 0x20483B2867
• Base-36: 1RP13M93

Squares and roots of 138650789991

• 138650789991 squared (138650789991²) is 19224041565128385780081
• 138650789991 cubed (138650789991³) is 2665428549824870765746841441969271
• The square root of 138650789991 is 372358.4160335307
• The cube root of 138650789991 is 5175.7598360403

Scales and comparisons

• 138,650,789,991 seconds is equal to 4,408 years, 34 weeks, 4 days, 12 hours, 19 minutes, 51 seconds.
• To count from 1 to 138,650,789,991 would take you about eight thousand, eight hundred seventeen 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 138650789991 cubic inches would be around 431.3 feet tall.

Recreational maths with 138650789991

• 138650789991 backwards is 199987056831
• The number of decimal digits it has is: 12
• The sum of 138650789991's digits is 66
• More coming soon!