Base | Representation |
---|---|
bin | 1001001010111011010… |
… | …11010010101000110111 |
3 | 1010010100011020000220001 |
4 | 10211131223102220313 |
5 | 20130313141222411 |
6 | 400431253252131 |
7 | 31523401603102 |
oct | 4453553225067 |
9 | 1103304200801 |
10 | 315104242231 |
11 | 1116a9148019 |
12 | 5109b934047 |
13 | 2393914534c |
14 | 1137313d739 |
15 | 82e3714dc1 |
hex | 495dad2a37 |
315104242231 has 4 divisors (see below), whose sum is σ = 315111849952. Its totient is φ = 315096634512.
The previous prime is 315104242183. The next prime is 315104242253. The reversal of 315104242231 is 132242401513.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132242401513 = 23 ⋅5749669631.
It is a cyclic number.
It is not a de Polignac number, because 315104242231 - 229 = 314567371319 is a prime.
It is a super-3 number, since 3×3151042422313 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 315104242231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (315104242031) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3741390 + ... + 3824683.
It is an arithmetic number, because the mean of its divisors is an integer number (78777962488).
Almost surely, 2315104242231 is an apocalyptic number.
315104242231 is a deficient number, since it is larger than the sum of its proper divisors (7607721).
315104242231 is an equidigital number, since it uses as much as digits as its factorization.
315104242231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7607720.
The product of its (nonzero) digits is 5760, while the sum is 28.
Adding to 315104242231 its reverse (132242401513), we get a palindrome (447346643744).
The spelling of 315104242231 in words is "three hundred fifteen billion, one hundred four million, two hundred forty-two thousand, two hundred thirty-one".
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