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395720652 = 22332976721
BaseRepresentation
bin10111100101100…
…011011111001100
31000120121200200110
4113211203133030
51302301030102
6103133400020
712543366345
oct2745433714
91016550613
10395720652
11193412868
12b0639010
1363ca3842
143a7ad0cc
1524b1a86c
hex179637cc

395720652 has 12 divisors (see below), whose sum is σ = 923348216. Its totient is φ = 131906880.

The previous prime is 395720651. The next prime is 395720653. The reversal of 395720652 is 256027593.

It is an interprime number because it is at equal distance from previous prime (395720651) and next prime (395720653).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 395720652.

It is not an unprimeable number, because it can be changed into a prime (395720651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16488349 + ... + 16488372.

Almost surely, 2395720652 is an apocalyptic number.

It is an amenable number.

395720652 is an abundant number, since it is smaller than the sum of its proper divisors (527627564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

395720652 is a wasteful number, since it uses less digits than its factorization.

395720652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32976728 (or 32976726 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 395720652 is about 19892.7286212827. The cubic root of 395720652 is about 734.1693313590.

The spelling of 395720652 in words is "three hundred ninety-five million, seven hundred twenty thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 32976721 65953442 98930163 131906884 197860326 395720652