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634904341 = 4713508603
BaseRepresentation
bin100101110101111…
…101111100010101
31122020200111000121
4211311331330111
52300013414331
6143000111541
721506412031
oct4565757425
91566614017
10634904341
112a6429035
121587655b1
13a16c9c56
14604711c1
153ab14c11
hex25d7df15

634904341 has 4 divisors (see below), whose sum is σ = 648412992. Its totient is φ = 621395692.

The previous prime is 634904327. The next prime is 634904353. The reversal of 634904341 is 143409436.

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.

It is a cyclic number.

It is not a de Polignac number, because 634904341 - 213 = 634896149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634904297 and 634904306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634904041) 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 3 ways as a sum of consecutive naturals, for example, 6754255 + ... + 6754348.

It is an arithmetic number, because the mean of its divisors is an integer number (162103248).

Almost surely, 2634904341 is an apocalyptic number.

It is an amenable number.

634904341 is a deficient number, since it is larger than the sum of its proper divisors (13508651).

634904341 is a wasteful number, since it uses less digits than its factorization.

634904341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13508650.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 634904341 is about 25197.3082094100. The cubic root of 634904341 is about 859.4806405380.

The spelling of 634904341 in words is "six hundred thirty-four million, nine hundred four thousand, three hundred forty-one".

Divisors: 1 47 13508603 634904341