138971201380

Names of 138971201380

• Cardinal: 138971201380 can be written as One hundred thirty-eight billion, nine hundred seventy-one million, two hundred one thousand, three hundred eighty.

Scientific notation

• Scientific notation: 1.3897120138 × 10¹¹

Factors of 138971201380

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 9699

Divisors of 138971201380

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 10 11 20 22 31 44 55 62 110 124 155 220 310 341 620 682 1364 1705 3121 3410 6242 6529 6820 12484 13058 15605 26116 31210 32645 34331 62420 65290 68662 71819 96751 130580 137324 143638 171655 193502 202399 287276 343310 359095 387004 404798 483755 686620 718190 809596 967510 1011995 1064261 1436380 1935020 2023990 2128522 2226389 4047980 4257044 4452778 5321305 8905556 10642610 11131945 20377009 21285220 22263890 40754018 44527780 81508036 101885045 203770090 224147099 407540180 448294198 631687279 896588396 1120735495 1263374558 2241470990 2526749116 3158436395 4482941980 6316872790 6948560069 12633745580 13897120138 27794240276 34742800345 69485600690 138971201380
• Sum of all divisors σ(n): 328796052480
• Sum of proper divisors (its aliquot sum) s(n): 189824851100
• 138971201380 is an abundant number, because the sum of its proper divisors (189824851100) is greater than itself. Its abundance is 50853649720

Bases of 138971201380

• Binary: 10000001011011010101000011111101100100₂
• Hexadecimal: 0x205B543F64
• Base-36: 1RUBV59G

Squares and roots of 138971201380

• 138971201380 squared (138971201380²) is 19312994813000513904400
• 138971201380 cubed (138971201380³) is 2683950091408389859851862468072000
• The square root of 138971201380 is 372788.4136879793
• The cube root of 138971201380 is 5179.7436974105

Scales and comparisons

• 138,971,201,380 seconds is equal to 4,418 years, 44 weeks, 2 days, 23 hours, 29 minutes, 40 seconds.
• To count from 1 to 138,971,201,380 would take you about eight thousand, eight hundred thirty-seven 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 138971201380 cubic inches would be around 431.6 feet tall.

Recreational maths with 138971201380

• 138971201380 backwards is 083102179831
• The number of decimal digits it has is: 12
• The sum of 138971201380's digits is 43
• More coming soon!