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342323431 = 407384047
BaseRepresentation
bin10100011001110…
…111000011100111
3212212010211110121
4110121313003213
51200113322211
653545102411
711324462332
oct2431670347
9785124417
10342323431
1116626172a
1296787a07
1355bc9058
143366d619
15200be271
hex146770e7

342323431 has 4 divisors (see below), whose sum is σ = 342411552. Its totient is φ = 342235312.

The previous prime is 342323417. The next prime is 342323497. The reversal of 342323431 is 134323243.

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 342323431 - 211 = 342321383 is a prime.

It is a super-2 number, since 2×3423234312 = 234370662823223522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342323396 and 342323405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342323411) 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, 37951 + ... + 46096.

It is an arithmetic number, because the mean of its divisors is an integer number (85602888).

Almost surely, 2342323431 is an apocalyptic number.

342323431 is a deficient number, since it is larger than the sum of its proper divisors (88121).

342323431 is an equidigital number, since it uses as much as digits as its factorization.

342323431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88120.

The product of its digits is 5184, while the sum is 25.

The square root of 342323431 is about 18501.9845151811. The cubic root of 342323431 is about 699.5394460318.

Adding to 342323431 its reverse (134323243), we get a palindrome (476646674).

The spelling of 342323431 in words is "three hundred forty-two million, three hundred twenty-three thousand, four hundred thirty-one".

Divisors: 1 4073 84047 342323431