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344202839 = 1512279489
BaseRepresentation
bin10100100001000…
…001111001010111
3212222200022112022
4110201001321113
51201103442324
654053243355
711346450551
oct2441017127
9788608468
10344202839
11167325762
129733355b
1356406626
14339dc4d1
152034105e
hex14841e57

344202839 has 4 divisors (see below), whose sum is σ = 346482480. Its totient is φ = 341923200.

The previous prime is 344202799. The next prime is 344202847. The reversal of 344202839 is 938202443.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938202443 = 1755188379.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-344202839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 344202799 and 344202808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344202899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1139594 + ... + 1139895.

It is an arithmetic number, because the mean of its divisors is an integer number (86620620).

Almost surely, 2344202839 is an apocalyptic number.

344202839 is a deficient number, since it is larger than the sum of its proper divisors (2279641).

344202839 is a wasteful number, since it uses less digits than its factorization.

344202839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279640.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 344202839 is about 18552.7043581253. The cubic root of 344202839 is about 700.8173031882.

The spelling of 344202839 in words is "three hundred forty-four million, two hundred two thousand, eight hundred thirty-nine".

Divisors: 1 151 2279489 344202839