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12434322031 = 23540622697
BaseRepresentation
bin10111001010010010…
…01011001001101111
31012002120101000011121
423211021023021233
5200431141301111
65413502401411
7620063664505
oct134511131157
935076330147
1012434322031
11530093a1aa
1224b0290267
131232132401
1485d598675
154cb963871
hex2e524b26f

12434322031 has 4 divisors (see below), whose sum is σ = 12974944752. Its totient is φ = 11893699312.

The previous prime is 12434322011. The next prime is 12434322049. The reversal of 12434322031 is 13022343421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12434322031 - 27 = 12434321903 is a prime.

It is a super-2 number, since 2×124343220312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12434321987 and 12434322005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12434322001) 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, 270311326 + ... + 270311371.

It is an arithmetic number, because the mean of its divisors is an integer number (3243736188).

Almost surely, 212434322031 is an apocalyptic number.

12434322031 is a deficient number, since it is larger than the sum of its proper divisors (540622721).

12434322031 is an equidigital number, since it uses as much as digits as its factorization.

12434322031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540622720.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12434322031 its reverse (13022343421), we get a palindrome (25456665452).

The spelling of 12434322031 in words is "twelve billion, four hundred thirty-four million, three hundred twenty-two thousand, thirty-one".

Divisors: 1 23 540622697 12434322031