31387439999
31,387,439,999 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.
What does the number 31387439999 look like?
As a prime, it is not composed of any other numbers and has no internal structure.
31387439999 is a prime number. Like all primes (except two), it is an odd number.
Prime factorization of 31387439999:
31387439999
See below for interesting mathematical facts about the number 31387439999 from the Numbermatics database.
Names of 31387439999
- Cardinal: 31387439999 can be written as Thirty-one billion, three hundred eighty-seven million, four hundred thirty-nine thousand, nine hundred ninety-nine.
Scientific notation
- Scientific notation: 3.1387439999 × 1010
Factors of 31387439999
- Number of distinct prime factors ω(n): 1
- Total number of prime factors Ω(n): 1
- Sum of prime factors: 31387439999
Divisors of 31387439999
- Number of divisors d(n): 2
- Complete list of divisors:
- Sum of all divisors σ(n): 31387440000
- Sum of proper divisors (its aliquot sum) s(n): 1
- 31387439999 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 31387439998
Bases of 31387439999
- Binary: 111010011101101011001010011011111112
- Hexadecimal: 0x74ED6537F
- Base-36: EF39RPB
Squares and roots of 31387439999
- 31387439999 squared (313874399992) is 985171389690825120001
- 31387439999 cubed (313874399993) is 30922007882652220614833362319999
-
The
square root of 31387439999 is 177165.0078288601 -
The
cube root of 31387439999 is 3154.4135661753
Scales and comparisons
How big is 31387439999?- 31,387,439,999 seconds is equal to 998 years, 1 week, 1 day, 13 hours, 19 minutes, 59 seconds.
-
To count from 1 to 31,387,439,999 would take you about one thousand, nine hundred ninety-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. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 31387439999 cubic inches would be around 262.9 feet tall.
Recreational maths with 31387439999
- 31387439999 backwards is 99993478313
- 31387439999 is a
twin prime ! Its twin is 31387440001 - The number of decimal digits it has is: 11
- The sum of 31387439999's digits is 65
- More coming soon!
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