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3903349 = 8634523
BaseRepresentation
bin1110111000111101110101
321100022101111
432320331311
51444401344
6215355021
745115012
oct16707565
97308344
103903349
11222670a
121382a71
13a68898
14738709
15521834
hex3b8f75

3903349 has 4 divisors (see below), whose sum is σ = 3908736. Its totient is φ = 3897964.

The previous prime is 3903337. The next prime is 3903373. The reversal of 3903349 is 9433093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9433093 = 11638111.

It is a cyclic number.

It is not a de Polignac number, because 3903349 - 211 = 3901301 is a prime.

It is a super-2 number, since 2×39033492 = 30472266831602, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3903349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3903649) 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, 1399 + ... + 3124.

It is an arithmetic number, because the mean of its divisors is an integer number (977184).

Almost surely, 23903349 is an apocalyptic number.

It is an amenable number.

3903349 is a deficient number, since it is larger than the sum of its proper divisors (5387).

3903349 is an equidigital number, since it uses as much as digits as its factorization.

3903349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5386.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 3903349 is about 1975.6894998962. The cubic root of 3903349 is about 157.4511345846.

The spelling of 3903349 in words is "three million, nine hundred three thousand, three hundred forty-nine".

Divisors: 1 863 4523 3903349