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51303225163 = 131821477013
BaseRepresentation
bin101111110001111010…
…010001011101001011
311220102102001212110111
4233301322101131023
51320032111201123
635322434055151
73464225135011
oct576172213513
9156372055414
1051303225163
111a837373443
129b3941a4b7
134ab7a66988
1426a98508b1
151503ec090d
hexbf1e9174b

51303225163 has 8 divisors (see below), whose sum is σ = 51757927056. Its totient is φ = 50849479200.

The previous prime is 51303225133. The next prime is 51303225187. The reversal of 51303225163 is 36152230315.

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

It is a cyclic number.

It is not a de Polignac number, because 51303225163 - 213 = 51303216971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51303225133) 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, 130956 + ... + 346057.

It is an arithmetic number, because the mean of its divisors is an integer number (6469740882).

Almost surely, 251303225163 is an apocalyptic number.

51303225163 is a deficient number, since it is larger than the sum of its proper divisors (454701893).

51303225163 is a wasteful number, since it uses less digits than its factorization.

51303225163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477965.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 51303225163 its reverse (36152230315), we get a palindrome (87455455478).

The spelling of 51303225163 in words is "fifty-one billion, three hundred three million, two hundred twenty-five thousand, one hundred sixty-three".

Divisors: 1 131 821 107551 477013 62488703 391627673 51303225163