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54564641 = 389140269
BaseRepresentation
bin1101000000100…
…1011100100001
310210200011121122
43100021130201
5102432032031
65225302025
71231535405
oct320113441
9123604548
1054564641
112888924a
1216334915
13b3c5c91
147365105
154bcc47b
hex3409721

54564641 has 4 divisors (see below), whose sum is σ = 54705300. Its totient is φ = 54423984.

The previous prime is 54564593. The next prime is 54564647. The reversal of 54564641 is 14646545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6553600 + 48011041 = 2560^2 + 6929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54564641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54564647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69746 + ... + 70523.

It is an arithmetic number, because the mean of its divisors is an integer number (13676325).

Almost surely, 254564641 is an apocalyptic number.

It is an amenable number.

54564641 is a deficient number, since it is larger than the sum of its proper divisors (140659).

54564641 is a wasteful number, since it uses less digits than its factorization.

54564641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140658.

The product of its digits is 57600, while the sum is 35.

The square root of 54564641 is about 7386.7882736681. The cubic root of 54564641 is about 379.2891628096.

The spelling of 54564641 in words is "fifty-four million, five hundred sixty-four thousand, six hundred forty-one".

Divisors: 1 389 140269 54564641