Base | Representation |
---|---|
bin | 10011000100001… |
… | …100110011100011 |
3 | 211021212222120211 |
4 | 103010030303203 |
5 | 1123341240011 |
6 | 51423514551 |
7 | 10632556102 |
oct | 2304146343 |
9 | 737788524 |
10 | 319868131 |
11 | 154614730 |
12 | 8b158a57 |
13 | 513661ab |
14 | 306a6039 |
15 | 1d135b21 |
hex | 1310cce3 |
319868131 has 8 divisors (see below), whose sum is σ = 349747200. Its totient is φ = 290122440.
The previous prime is 319868119. The next prime is 319868147. The reversal of 319868131 is 131868913.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 319868131 - 217 = 319737059 is a prime.
It is a super-2 number, since 2×3198681312 = 204631242458866322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (319868531) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28291 + ... + 37948.
It is an arithmetic number, because the mean of its divisors is an integer number (43718400).
Almost surely, 2319868131 is an apocalyptic number.
319868131 is a deficient number, since it is larger than the sum of its proper divisors (29879069).
319868131 is a wasteful number, since it uses less digits than its factorization.
319868131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 66689.
The product of its digits is 31104, while the sum is 40.
The square root of 319868131 is about 17884.8575895924. The cubic root of 319868131 is about 683.8964104208.
The spelling of 319868131 in words is "three hundred nineteen million, eight hundred sixty-eight thousand, one hundred thirty-one".
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