138128969760150245888

Names of 138128969760150245888

• Cardinal: 138128969760150245888 can be written as One hundred thirty-eight quintillion, one hundred twenty-eight quadrillion, nine hundred sixty-nine trillion, seven hundred sixty billion, one hundred fifty million, two hundred forty-five thousand, eight hundred eighty-eight.

Scientific notation

• Scientific notation: 1.38128969760150245888 × 10²⁰

Factors of 138128969760150245888

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 128407017640753

Divisors of 138128969760150245888

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 11 16 22 32 44 64 88 128 176 191 256 352 382 512 704 764 1408 1528 2101 2816 3056 4202 5632 6112 8404 12224 16808 24448 33616 48896 67232 97792 134464 268928 537856 1075712 128407017640549 256814035281098 513628070562196 1027256141124392 1412477194046039 2054512282248784 2824954388092078 4109024564497568 5649908776184156 8218049128995136 11299817552368312 16436098257990272 22599635104736624 24525740369344859 32872196515980544 45199270209473248 49051480738689718 65744393031961088 90398540418946496 98102961477379436 180797080837892992 196205922954758872 269783144062793449 361594161675785984 392411845909517744 539566288125586898 723188323351571968 784823691819035488 1079132576251173796 1569647383638070976 2158265152502347592 3139294767276141952 4316530305004695184 6278589534552283904 8633060610009390368 12557179069104567808 17266121220018780736 34532242440037561472 69064484880075122944 138128969760150245888
• Sum of all divisors σ(n): 302654313322635225600
• Sum of proper divisors (its aliquot sum) s(n): 164525343562484979712
• 138128969760150245888 is an abundant number, because the sum of its proper divisors (164525343562484979712) is greater than itself. Its abundance is 26396373802334733824

Bases of 138128969760150245888

• Binary: 1110111110011101100101011100010100010000000011011011101001000000000₂
• Hexadecimal: 0x77CECAE28806DD200
• Base-36: T5FT591KWHNNK

Squares and roots of 138128969760150245888

• 138128969760150245888 squared (138128969760150245888²) is 19079612287000501077040255267586860908544
• 138128969760150245888 cubed (138128969760150245888³) is 2635447188626483287666096951299951088174025567163776680067072
• The square root of 138128969760150245888 is 11752828160.0706749161
• The cube root of 138128969760150245888 is 5169258.5832155291

Scales and comparisons

• 138,128,969,760,150,245,888 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,128,969,760,150,245,888 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 138128969760150245888 cubic inches would be around 430771.5 feet tall.

Recreational maths with 138128969760150245888

• 138128969760150245888 backwards is 888542051067969821831
• The number of decimal digits it has is: 21
• The sum of 138128969760150245888's digits is 101
• More coming soon!