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56619372 = 2234718281
BaseRepresentation
bin1101011111111…
…1000101101100
310221112120011210
43113333011230
5103443304442
65341314420
71255154025
oct327770554
9127476153
1056619372
1129a61a77
1216b65a10
13b9652b4
14773bc4c
154e8619c
hex35ff16c

56619372 has 12 divisors (see below), whose sum is σ = 132111896. Its totient is φ = 18873120.

The previous prime is 56619359. The next prime is 56619377. The reversal of 56619372 is 27391665.

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 56619372.

It is not an unprimeable number, because it can be changed into a prime (56619377) 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, 2359129 + ... + 2359152.

Almost surely, 256619372 is an apocalyptic number.

It is an amenable number.

56619372 is an abundant number, since it is smaller than the sum of its proper divisors (75492524).

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

56619372 is a wasteful number, since it uses less digits than its factorization.

56619372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4718288 (or 4718286 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 56619372 is about 7524.5845068017. The cubic root of 56619372 is about 383.9915633997.

The spelling of 56619372 in words is "fifty-six million, six hundred nineteen thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 4718281 9436562 14154843 18873124 28309686 56619372