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56854549 = 227325013
BaseRepresentation
bin1101100011100…
…0100000010101
310221222111210001
43120320200111
5104023321144
65350331301
71260153463
oct330704025
9127874701
1056854549
112a102734
1217059b31
13ba1835b
14779d833
154ed0bd4
hex3638815

56854549 has 4 divisors (see below), whose sum is σ = 56881836. Its totient is φ = 56827264.

The previous prime is 56854541. The next prime is 56854571. The reversal of 56854549 is 94545865.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94545865 = 518909173.

It can be written as a sum of positive squares in 2 ways, for example, as 54316900 + 2537649 = 7370^2 + 1593^2 .

It is a cyclic number.

It is not a de Polignac number, because 56854549 - 23 = 56854541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56854499 and 56854508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56854541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10234 + ... + 14779.

It is an arithmetic number, because the mean of its divisors is an integer number (14220459).

Almost surely, 256854549 is an apocalyptic number.

It is an amenable number.

56854549 is a deficient number, since it is larger than the sum of its proper divisors (27287).

56854549 is a wasteful number, since it uses less digits than its factorization.

56854549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27286.

The product of its digits is 864000, while the sum is 46.

The square root of 56854549 is about 7540.1955544933. The cubic root of 56854549 is about 384.5224843862.

The spelling of 56854549 in words is "fifty-six million, eight hundred fifty-four thousand, five hundred forty-nine".

Divisors: 1 2273 25013 56854549