990855515000

Names of 990855515000

• Cardinal: 990855515000 can be written as Nine hundred ninety billion, eight hundred fifty-five million, five hundred fifteen thousand.

Scientific notation

• Scientific notation: 9.90855515 × 10¹¹

Factors of 990855515000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 15243951

Divisors of 990855515000

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 13 20 25 26 40 50 52 65 100 104 125 130 200 250 260 325 500 520 625 650 1000 1250 1300 1625 2500 2600 3250 5000 6500 8125 13000 16250 32500 65000 15243931 30487862 60975724 76219655 121951448 152439310 198171103 304878620 381098275 396342206 609757240 762196550 792684412 990855515 1524393100 1585368824 1905491375 1981711030 3048786200 3810982750 3963422060 4954277575 7621965500 7926844120 9527456875 9908555150 15243931000 19054913750 19817110300 24771387875 38109827500 39634220600 49542775750 76219655000 99085551500 123856939375 198171103000 247713878750 495427757500 990855515000
• Sum of all divisors σ(n): 2500157287320
• Sum of proper divisors (its aliquot sum) s(n): 1509301772320
• 990855515000 is an abundant number, because the sum of its proper divisors (1509301772320) is greater than itself. Its abundance is 518446257320

Bases of 990855515000

• Binary: 1110011010110011100101110100101101111000₂
• Hexadecimal: 0xE6B3974B78
• Base-36: CN6XSGHK

Squares and roots of 990855515000

• 990855515000 squared (990855515000²) is 981794651605915225000000
• 990855515000 cubed (990855515000³) is 972816645141224707313715875000000000
• The square root of 990855515000 is 995417.2567320701
• The cube root of 990855515000 is 9969.4249955183

Scales and comparisons

• 990,855,515,000 seconds is equal to 31,506 years, 7 weeks, 2 days, 3 hours, 3 minutes, 20 seconds.
• To count from 1 to 990,855,515,000 would take you about sixty-three thousand and twelve 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 990855515000 cubic inches would be around 830.8 feet tall.

Recreational maths with 990855515000

• 990855515000 backwards is 000515558099
• The number of decimal digits it has is: 12
• The sum of 990855515000's digits is 47
• More coming soon!