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51286141 is a prime number
BaseRepresentation
bin1100001110100…
…1000001111101
310120111121100201
43003221001331
5101112124031
65031123501
71161632164
oct303510175
9116447321
1051286141
1126a4a045
1215213591
13a81893a
146b503db
154780d61
hex30e907d

51286141 has 2 divisors, whose sum is σ = 51286142. Its totient is φ = 51286140.

The previous prime is 51286129. The next prime is 51286171. The reversal of 51286141 is 14168215.

51286141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27520516 + 23765625 = 5246^2 + 4875^2 .

It is a cyclic number.

It is not a de Polignac number, because 51286141 - 27 = 51286013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51286171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25643070 + 25643071.

It is an arithmetic number, because the mean of its divisors is an integer number (25643071).

Almost surely, 251286141 is an apocalyptic number.

It is an amenable number.

51286141 is a deficient number, since it is larger than the sum of its proper divisors (1).

51286141 is an equidigital number, since it uses as much as digits as its factorization.

51286141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 28.

The square root of 51286141 is about 7161.4342837172. The cubic root of 51286141 is about 371.5352353777.

The spelling of 51286141 in words is "fifty-one million, two hundred eighty-six thousand, one hundred forty-one".