Base | Representation |
---|---|
bin | 101110111101… |
… | …011001110011 |
3 | 212011102022210 |
4 | 232331121303 |
5 | 11122411011 |
6 | 1115503203 |
7 | 206430411 |
oct | 56753163 |
9 | 25142283 |
10 | 12310131 |
11 | 6a48869 |
12 | 4157b03 |
13 | 2720202 |
14 | 18c62b1 |
15 | 11326a6 |
hex | bbd673 |
12310131 has 8 divisors (see below), whose sum is σ = 16943104. Its totient is φ = 7941960.
The previous prime is 12310121. The next prime is 12310147. The reversal of 12310131 is 13101321.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12310131 - 211 = 12308083 is a prime.
It is a super-2 number, since 2×123101312 = 303078650474322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12310121) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66091 + ... + 66276.
It is an arithmetic number, because the mean of its divisors is an integer number (2117888).
Almost surely, 212310131 is an apocalyptic number.
12310131 is a deficient number, since it is larger than the sum of its proper divisors (4632973).
12310131 is a wasteful number, since it uses less digits than its factorization.
12310131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 132401.
The product of its (nonzero) digits is 18, while the sum is 12.
The square root of 12310131 is about 3508.5796271426. The cubic root of 12310131 is about 230.8983829958.
Adding to 12310131 its reverse (13101321), we get a palindrome (25411452).
It can be divided in two parts, 1 and 2310131, that added together give a palindrome (2310132).
The spelling of 12310131 in words is "twelve million, three hundred ten thousand, one hundred thirty-one".
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