138993621338149799284

Names of 138993621338149799284

• Cardinal: 138993621338149799284 can be written as One hundred thirty-eight quintillion, nine hundred ninety-three quadrillion, six hundred twenty-one trillion, three hundred thirty-eight billion, one hundred forty-nine million, seven hundred ninety-nine thousand, two hundred eighty-four.

Scientific notation

• Scientific notation: 1.38993621338149799284 × 10²⁰

Factors of 138993621338149799284

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1306674889427366

Divisors of 138993621338149799284

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 7 14 28 29 58 116 131 203 262 406 524 812 917 1834 3668 3799 7598 15196 26593 53186 106372 1306674889427197 2613349778854394 5226699557708788 9146724225990379 18293448451980758 36586896903961516 37893571793388713 75787143586777426 151574287173554852 171174410514962807 265255002553720991 342348821029925614 530510005107441982 684697642059851228 1061020010214883964 1198220873604739649 2396441747209479298 4792883494418958596 4964057904933921403 9928115809867842806 19856231619735685612 34748405334537449821 69496810669074899642 138993621338149799284
• Sum of all divisors σ(n): 289768223479375428480
• Sum of proper divisors (its aliquot sum) s(n): 150774602141225629196
• 138993621338149799284 is an abundant number, because the sum of its proper divisors (150774602141225629196) is greater than itself. Its abundance is 11780980803075829912

Bases of 138993621338149799284

• Binary: 1111000100011101100100010100010111111110001100100101100010101110100₂
• Hexadecimal: 0x788EC8A2FF192C574
• Base-36: TC0AUNKW38YUS

Squares and roots of 138993621338149799284

• 138993621338149799284 squared (138993621338149799284²) is 19319226772692971200158021483809486912656
• 138993621338149799284 cubed (138993621338149799284³) is 2685249290589532643866886481721501013974906022585651239338304
• The square root of 138993621338149799284 is 11789555603.9296832895
• The cube root of 138993621338149799284 is 5180022.2284808837

Scales and comparisons

• 138,993,621,338,149,799,284 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,993,621,338,149,799,284 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 138993621338149799284 cubic inches would be around 431668.5 feet tall.

Recreational maths with 138993621338149799284

• 138993621338149799284 backwards is 482997941833126399831
• The number of decimal digits it has is: 21
• The sum of 138993621338149799284's digits is 109
• More coming soon!