189138599296728991

Names of 189138599296728991

• Cardinal: 189138599296728991 can be written as One hundred eighty-nine quadrillion, one hundred thirty-eight trillion, five hundred ninety-nine billion, two hundred ninety-six million, seven hundred twenty-eight thousand, nine hundred ninety-one.

Scientific notation

• Scientific notation: 1.89138599296728991 × 10¹⁷

Factors of 189138599296728991

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 29546377

Divisors of 189138599296728991

• Number of divisors d(n): 48
• Complete list of divisors:
  1 7 13 31 49 91 217 403 637 1519 2821 19747 327809 2294663 4261517 10162079 16062641 29218517 29830619 71134553 132107027 204529619 208814333 379840721 497941871 905774027 924749189 1431707333 2658885047 6340418189 6473244323 11775062351 18612195329 44382927323 82425436457 576978055199 9578092839253 67046649874771 124515206910289 296920878016843 469326549123397 871606448372023 2078446146117901 3859971414218959 6101245138604161 14549123022825307 27019799899532713 189138599296728991
• Sum of all divisors σ(n): 244586933238170880
• Sum of proper divisors (its aliquot sum) s(n): 55448333941441889
• 189138599296728991 is a deficient number, because the sum of its proper divisors (55448333941441889) is less than itself. Its deficiency is 133690265355287102

Bases of 189138599296728991

• Binary: 1010011111111101001000110111010000011001010111111110011111₂
• Hexadecimal: 0x29FF48DD0657F9F
• Base-36: 1FQC1CZZCQE7

Squares and roots of 189138599296728991

• 189138599296728991 squared (189138599296728991²) is 35773409743928612368895312099878081
• 189138599296728991 cubed (189138599296728991³) is 6766132611034614277412436032491114055175433198146271
• The square root of 189138599296728991 is 434900677.5077833689
• The cube root of 189138599296728991 is 574019.6014632317

Scales and comparisons

• 189,138,599,296,728,991 seconds is equal to 6,014,022,413 years, 27 weeks, 5 days, 22 hours, 56 minutes, 31 seconds.
• To count from 1 to 189,138,599,296,728,991 would take you about eighteen billion, forty-two million, sixty-seven thousand, two hundred forty 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 189138599296728991 cubic inches would be around 47835 feet tall.

Recreational maths with 189138599296728991

• 189138599296728991 backwards is 199827692995831981
• The number of decimal digits it has is: 18
• The sum of 189138599296728991's digits is 106
• More coming soon!