138649838784218108992

Names of 138649838784218108992

• Cardinal: 138649838784218108992 can be written as One hundred thirty-eight quintillion, six hundred forty-nine quadrillion, eight hundred thirty-eight trillion, seven hundred eighty-four billion, two hundred eighteen million, one hundred eight thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 1.38649838784218108992 × 10²⁰

Factors of 138649838784218108992

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3844

Divisors of 138649838784218108992

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 8 16 32 64 373 746 1492 2984 3469 5968 6938 11936 13876 23872 27752 55504 111008 139129 222016 278258 556516 1113032 1293937 2226064 2587874 4452128 5175748 8904256 10351496 12033961 20702992 24067922 41405984 48135844 51895117 82811968 96271688 103790234 192543376 207580468 385086752 415160936 482638501 770173504 830321872 965277002 1660643744 1930554004 3321287488 3861108008 4488667453 7722216016 8977334906 15444432032 17954669812 30888864064 35909339624 71818679248 143637358496 180024160873 287274716992 360048321746 720096643492 1440193286984 1674272959969 2880386573968 3348545919938 5760773147936 6697091839876 11521546295872 13394183679752 26788367359504 53576734719008 107153469438016 624503814068437 1249007628136874 2498015256273748 4996030512547496 9992061025094992 19984122050189984 39968244100379968
• Sum of all divisors σ(n): 138689418659896103964
• Sum of proper divisors (its aliquot sum) s(n): 39579875677994972
• 138649838784218108992 is a deficient number, because the sum of its proper divisors (39579875677994972) is less than itself. Its deficiency is 138610258908540114020

Bases of 138649838784218108992

• Binary: 1111000010000100111001011011100011010100010011111111001010001000000₂
• Hexadecimal: 0x784272DC6A27F9440
• Base-36: T9E9TWRVUTQ9S

Squares and roots of 138649838784218108992

• 138649838784218108992 squared (138649838784218108992²) is 19223777794889672151812329062988391256064
• 138649838784218108992 cubed (138649838784218108992³) is 2665373692085084941712669167151140486981889564910737732927488
• The square root of 138649838784218108992 is 11774966614.9937813313
• 138649838784218108992 is a perfect cube number. Its cube root is 5175748

Scales and comparisons

• 138,649,838,784,218,108,992 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,649,838,784,218,108,992 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 138649838784218108992 cubic inches would be around 431312.3 feet tall.

Recreational maths with 138649838784218108992

• 138649838784218108992 backwards is 299801812487838946831
• The number of decimal digits it has is: 21
• The sum of 138649838784218108992's digits is 109
• More coming soon!