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51304255423 = 234154405361
BaseRepresentation
bin101111110001111110…
…001100111110111111
311220102111000012201021
4233301332030332333
51320032342133143
635322512125011
73464236655461
oct576176147677
9156374005637
1051304255423
111a837a074a3
129b39836767
134ab80378b5
1426a9a3c131
151504125ced
hexbf1f8cfbf

51304255423 has 8 divisors (see below), whose sum is σ = 54840604896. Its totient is φ = 47876716800.

The previous prime is 51304255369. The next prime is 51304255427. The reversal of 51304255423 is 32455240315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-51304255423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51304255427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27201738 + ... + 27203623.

It is an arithmetic number, because the mean of its divisors is an integer number (6855075612).

Almost surely, 251304255423 is an apocalyptic number.

51304255423 is a deficient number, since it is larger than the sum of its proper divisors (3536349473).

51304255423 is a wasteful number, since it uses less digits than its factorization.

51304255423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54405425.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 51304255423 its reverse (32455240315), we get a palindrome (83759495738).

The spelling of 51304255423 in words is "fifty-one billion, three hundred four million, two hundred fifty-five thousand, four hundred twenty-three".

Divisors: 1 23 41 943 54405361 1251323303 2230619801 51304255423