999999999999999

999,999,999,999,999 is an odd composite number composed of six prime numbers multiplied together.

999999999999999 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.

Prime factorization of 999999999999999:

33 × 31 × 37 × 41 × 271 × 2906161

(3 × 3 × 3 × 31 × 37 × 41 × 271 × 2906161)

See below for interesting mathematical facts about the number 999999999999999 from the Numbermatics database.

Names of 999999999999999

• Cardinal: 999999999999999 can be written as Nine hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine.

Scientific notation

• Scientific notation: 9.99999999999999 × 1014

Factors of 999999999999999

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2906544

Divisors of 999999999999999

• Number of divisors d(n): 128
• Complete list of divisors:
• Sum of all divisors σ(n): 1614847741624320
• Sum of proper divisors (its aliquot sum) s(n): 614847741624321
• 999999999999999 is a deficient number, because the sum of its proper divisors (614847741624321) is less than itself. Its deficiency is 385152258375678

Bases of 999999999999999

• Binary: 11100011010111111010100100110001100111111111111111 2
• Base-36: 9UGXNORJLR

Squares and roots of 999999999999999

• 999999999999999 squared (9999999999999992) is 999999999999998000000000000001
• 999999999999999 cubed (9999999999999993) is 999999999999997000000000000002999999999999999
• The square root of 999999999999999 is 31622776.6016837775
• The cube root of 999999999999999 is 99999.9999999989

Scales and comparisons

How big is 999999999999999?
• 999,999,999,999,999 seconds is equal to 31,796,906 years, 41 weeks, 3 days, 1 hour, 46 minutes, 39 seconds.
• To count from 1 to 999,999,999,999,999 would take you about seven billion, nine million, ninety-two thousand, two hundred sixty-six 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.

Note: we do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!

• A cube with a volume of 999999999999999 cubic inches would be around 8333.3 feet tall.

Recreational maths with 999999999999999

• 999999999999999 is the same when its digits are reversed! That makes it a palindromic number.
• The number of decimal digits it has is: 15
• The sum of 999999999999999's digits is 135
• More coming soon!

The information we have on file for 999999999999999 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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