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51542414041 = 281183424961
BaseRepresentation
bin110000000000001010…
…101101001011011001
311221001002010220220211
4300000022231023121
51321024324222131
635402300451121
73503161201456
oct600012551331
9157032126824
1051542414041
111a94a3925a8
129ba5549aa1
134b25492561
1426cd51482d
151519ebb5b1
hexc002ad2d9

51542414041 has 4 divisors (see below), whose sum is σ = 51725839284. Its totient is φ = 51358988800.

The previous prime is 51542414039. The next prime is 51542414051. The reversal of 51542414041 is 14041424515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14041424515 = 52808284903.

It can be written as a sum of positive squares in 2 ways, for example, as 37627852441 + 13914561600 = 193979^2 + 117960^2 .

It is a cyclic number.

It is not a de Polignac number, because 51542414041 - 21 = 51542414039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51542413994 and 51542414012.

It is not an unprimeable number, because it can be changed into a prime (51542414051) 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, 91712200 + ... + 91712761.

It is an arithmetic number, because the mean of its divisors is an integer number (12931459821).

Almost surely, 251542414041 is an apocalyptic number.

It is an amenable number.

51542414041 is a deficient number, since it is larger than the sum of its proper divisors (183425243).

51542414041 is a wasteful number, since it uses less digits than its factorization.

51542414041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183425242.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 51542414041 its reverse (14041424515), we get a palindrome (65583838556).

The spelling of 51542414041 in words is "fifty-one billion, five hundred forty-two million, four hundred fourteen thousand, forty-one".

Divisors: 1 281 183424961 51542414041