138680696648

Names of 138680696648

• Cardinal: 138680696648 can be written as One hundred thirty-eight billion, six hundred eighty million, six hundred ninety-six thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 1.38680696648 × 10¹¹

Factors of 138680696648

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 353

Divisors of 138680696648

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 13 26 52 67 104 134 268 271 536 542 871 1084 1742 2168 3484 3523 6968 7046 14092 18157 28184 36314 72628 73441 145256 146882 236041 293764 472082 587528 944164 954733 1888328 1909466 3818932 4920547 7637864 9841094 19682188 19902511 39364376 39805022 63967111 79610044 127934222 159220088 255868444 258732643 511736888 517465286 1034930572 1333468237 2069861144 2666936474 5333872948 10667745896 17335087081 34670174162 69340348324 138680696648
• Sum of all divisors σ(n): 285260478720
• Sum of proper divisors (its aliquot sum) s(n): 146579782072
• 138680696648 is an abundant number, because the sum of its proper divisors (146579782072) is greater than itself. Its abundance is 7899085424

Bases of 138680696648

• Binary: 10000001001010000000110111111101001000₂
• Hexadecimal: 0x204A037F48
• Base-36: 1RPIWMDK

Squares and roots of 138680696648

• 138680696648 squared (138680696648²) is 19232335622774598435904
• 138680696648 cubed (138680696648³) is 2667153702334528245769617895649792
• The square root of 138680696648 is 372398.5722958671
• The cube root of 138680696648 is 5176.1319424579

Scales and comparisons

• 138,680,696,648 seconds is equal to 4,409 years, 32 weeks, 15 hours, 44 minutes, 8 seconds.
• To count from 1 to 138,680,696,648 would take you about eight thousand, eight 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 138680696648 cubic inches would be around 431.3 feet tall.

Recreational maths with 138680696648

• 138680696648 backwards is 846696086831
• The number of decimal digits it has is: 12
• The sum of 138680696648's digits is 65
• More coming soon!