990872512026831848168

Names of 990872512026831848168

• Cardinal: 990872512026831848168 can be written as Nine hundred ninety quintillion, eight hundred seventy-two quadrillion, five hundred twelve trillion, twenty-six billion, eight hundred thirty-one million, eight hundred forty-eight thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 9.90872512026831848168 × 10²⁰

Factors of 990872512026831848168

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 4984743

Divisors of 990872512026831848168

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 4 8 4984741 9969482 19938964 39877928 24847642837081 49695285674162 99390571348324 198781142696648
• Sum of all divisors σ(n): 990872685960406478865
• Sum of proper divisors (its aliquot sum) s(n): 173933574630697
• 990872512026831848168 is a deficient number, because the sum of its proper divisors (173933574630697) is less than itself. Its deficiency is 990872338093257217471

Bases of 990872512026831848168

• Binary: 1101011011011100011110010100111101001000100010010010011000001011101000₂
• Hexadecimal: 0x35B71E53D2224982E8
• Base-36: 5T46NIO5GIQ608

Squares and roots of 990872512026831848168

• 990872512026831848168 squared (990872512026831848168²) is 981828335090364025592377464108110604956224
• 990872512026831848168 cubed (990872512026831848168³) is 972866708770111017847336220007537333081907018204224030654597632
• The square root of 990872512026831848168 is 31478127517.7992734455
• 990872512026831848168 is a perfect cube number. Its cube root is 9969482

Scales and comparisons

• 990,872,512,026,831,848,168 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 990,872,512,026,831,848,168 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 990872512026831848168 cubic inches would be around 830790.2 feet tall.

Recreational maths with 990872512026831848168

• 990872512026831848168 backwards is 861848138620215278099
• The number of decimal digits it has is: 21
• The sum of 990872512026831848168's digits is 98
• More coming soon!