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56487372 = 2234707281
BaseRepresentation
bin1101011101111…
…0110111001100
310221021212002220
43113132313030
5103430043442
65334415340
71254064134
oct327366714
9127255086
1056487372
1129981887
1216b01550
13b91a1a6
147705ac4
154e5beec
hex35dedcc

56487372 has 12 divisors (see below), whose sum is σ = 131803896. Its totient is φ = 18829120.

The previous prime is 56487359. The next prime is 56487391. The reversal of 56487372 is 27378465.

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

It is an unprimeable number.

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, 2353629 + ... + 2353652.

It is an arithmetic number, because the mean of its divisors is an integer number (10983658).

Almost surely, 256487372 is an apocalyptic number.

It is an amenable number.

56487372 is an abundant number, since it is smaller than the sum of its proper divisors (75316524).

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

56487372 is a wasteful number, since it uses less digits than its factorization.

56487372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4707288 (or 4707286 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 56487372 is about 7515.8081401803. The cubic root of 56487372 is about 383.6929239917.

The spelling of 56487372 in words is "fifty-six million, four hundred eighty-seven thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 4707281 9414562 14121843 18829124 28243686 56487372