138068260290

Names of 138068260290

• Cardinal: 138068260290 can be written as One hundred thirty-eight billion, sixty-eight million, two hundred sixty thousand, two hundred ninety.

Scientific notation

• Scientific notation: 1.3806826029 × 10¹¹

Factors of 138068260290

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 338

Divisors of 138068260290

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 9 10 15 17 18 27 30 34 45 51 54 85 90 102 135 153 170 255 270 306 311 459 510 622 765 918 933 1530 1555 1866 2295 2799 3110 4590 4665 5287 5598 8397 9330 10574 13995 15861 16794 26435 27990 31722 41985 47583 52870 79305 83970 95166 96721 142749 158610 193442 237915 285498 290163 475830 483605 580326 713745 870489 967210 1427490 1450815 1644257 1740978 2611467 2901630 3288514 4352445 4932771 5222934 8221285 8704890 9865542 13057335 14798313 16442570 24663855 26114670 29596626 30080231 44394939 49327710 60160462 73991565 88789878 90240693 147983130 150401155 180481386 221974695 270722079 300802310 443949390 451203465 511363927 541444158 812166237 902406930 1022727854 1353610395 1534091781 1624332474 2556819635 2707220790 3068183562 4060831185 4602275343 5113639270 7670458905 8121662370 9204550686 13806826029 15340917810 23011376715 27613652058 46022753430 69034130145 138068260290
• Sum of all divisors σ(n): 391097341440
• Sum of proper divisors (its aliquot sum) s(n): 253029081150
• 138068260290 is an abundant number, because the sum of its proper divisors (253029081150) is greater than itself. Its abundance is 114960820860

Bases of 138068260290

• Binary: 10000000100101100000100111010111000010₂
• Hexadecimal: 0x20258275C2
• Base-36: 1RFE9ZGI

Squares and roots of 138068260290

• 138068260290 squared (138068260290²) is 19062844499507190884100
• 138068260290 cubed (138068260290³) is 2631973776225753607712634022389000
• The square root of 138068260290 is 371575.3763235665
• The cube root of 138068260290 is 5168.5011535519

Scales and comparisons

• 138,068,260,290 seconds is equal to 4,390 years, 7 weeks, 3 days, 6 hours, 31 minutes, 30 seconds.
• To count from 1 to 138,068,260,290 would take you about eight thousand, seven hundred eighty 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 138068260290 cubic inches would be around 430.7 feet tall.

Recreational maths with 138068260290

• 138068260290 backwards is 092062860831
• 138068260290 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138068260290's digits is 45
• More coming soon!