990647785125

Names of 990647785125

• Cardinal: 990647785125 can be written as Nine hundred ninety billion, six hundred forty-seven million, seven hundred eighty-five thousand, one hundred twenty-five.

Scientific notation

• Scientific notation: 9.90647785125 × 10¹¹

Factors of 990647785125

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2524

Divisors of 990647785125

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 5 9 15 17 25 45 51 61 75 85 125 153 183 225 255 305 375 421 425 549 765 915 1037 1125 1263 1275 1525 2017 2105 2125 2745 3111 3789 3825 4575 5185 6051 6315 6375 7157 7625 9333 10085 10525 13725 15555 18153 18945 19125 21471 22875 25681 25925 30255 31575 34289 35785 46665 50425 52625 64413 68625 77043 77775 90765 94725 102867 107355 123037 128405 129625 151275 157875 171445 178925 231129 233325 252125 308601 322065 369111 385215 388875 436577 453825 473625 514335 536775 615185 642025 756375 849157 857225 894625 1107333 1155645 1166625 1309731 1543005 1610325 1845555 1926075 2091629 2182885 2269125 2547471 2571675 2683875 3075925 3210125 3929193 4245785 4286125 5536665 5778225 6274887 6548655 7642413 7715025 8051625 9227775 9630375 10458145 10914425 12737355 12858375 14435669 15379625 18824661 19645965 21228925 27683325 28891125 31374435 32743275 38212065 38575125 43307007 46138875 51798577 52290725 54572125 63686775 72178345 94123305 98229825 106144625 129921021 138416625 155395731 156872175 163716375 191060325 216535035 258992885 261453625 318433875 360891725 466187193 470616525 491149125 649605105 776978655 784360875 880575809 955301625 1082675175 1294964425 1804458625 2330935965 2353082625 2641727427 3248025525 3884893275 4402879045 5413375875 6474822125 7925182281 11654679825 13208637135 16240127625 19424466375 22014395225 39625911405 58273399125 66043185675 110071976125 198129557025 330215928375 990647785125
• Sum of all divisors σ(n): 1927372943808
• Sum of proper divisors (its aliquot sum) s(n): 936725158683
• 990647785125 is a deficient number, because the sum of its proper divisors (936725158683) is less than itself. Its deficiency is 53922626442

Bases of 990647785125

• Binary: 1110011010100111001101011001011010100101₂
• Hexadecimal: 0xE6A73596A5
• Base-36: CN3I4339

Squares and roots of 990647785125

• 990647785125 squared (990647785125²) is 981383034173068171265625
• 990647785125 cubed (990647785125³) is 972204929162802169789925574298828125
• The square root of 990647785125 is 995312.9081474831
• The cube root of 990647785125 is 9968.7282601833

Scales and comparisons

• 990,647,785,125 seconds is equal to 31,499 years, 27 weeks, 5 days, 20 hours, 18 minutes, 45 seconds.
• To count from 1 to 990,647,785,125 would take you about sixty-two thousand, nine hundred ninety-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 990647785125 cubic inches would be around 830.7 feet tall.

Recreational maths with 990647785125

• 990647785125 backwards is 521587746099
• The number of decimal digits it has is: 12
• The sum of 990647785125's digits is 63
• More coming soon!