Base | Representation |
---|---|
bin | 10110100110001010… |
… | …01111111101001001 |
3 | 1011022110012001112110 |
4 | 23103011033331021 |
5 | 144321103200431 |
6 | 5323435532533 |
7 | 606424243011 |
oct | 132305177511 |
9 | 34273161473 |
10 | 12131303241 |
11 | 5165893752 |
12 | 24268ba149 |
13 | 11b4418555 |
14 | 83123ac41 |
15 | 4b005a346 |
hex | 2d314ff49 |
12131303241 has 32 divisors (see below), whose sum is σ = 17888221440. Its totient is φ = 7273908224.
The previous prime is 12131303227. The next prime is 12131303251. The reversal of 12131303241 is 14230313121.
It is a cyclic number.
It is not a de Polignac number, because 12131303241 - 223 = 12122914633 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12131303221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1395055 + ... + 1403723.
It is an arithmetic number, because the mean of its divisors is an integer number (559006920).
Almost surely, 212131303241 is an apocalyptic number.
It is an amenable number.
12131303241 is a deficient number, since it is larger than the sum of its proper divisors (5756918199).
12131303241 is a wasteful number, since it uses less digits than its factorization.
12131303241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9905.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 12131303241 its reverse (14230313121), we get a palindrome (26361616362).
The spelling of 12131303241 in words is "twelve billion, one hundred thirty-one million, three hundred three thousand, two hundred forty-one".
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