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12931202957 is a prime number
BaseRepresentation
bin11000000101100001…
…00111111110001101
31020101012100011122212
430002300213332031
5202440341443312
65535052320205
7635306261111
oct140260477615
936335304585
1012931202957
1155363661a2
12260a773065
1312b10648aa
148a957b741
1550a3b2822
hex302c27f8d

12931202957 has 2 divisors, whose sum is σ = 12931202958. Its totient is φ = 12931202956.

The previous prime is 12931202939. The next prime is 12931203053. The reversal of 12931202957 is 75920213921.

12931202957 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., 12927462601 + 3740356 = 113699^2 + 1934^2 .

It is a cyclic number.

It is not a de Polignac number, because 12931202957 - 226 = 12864094093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12931202657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6465601478 + 6465601479.

It is an arithmetic number, because the mean of its divisors is an integer number (6465601479).

Almost surely, 212931202957 is an apocalyptic number.

It is an amenable number.

12931202957 is a deficient number, since it is larger than the sum of its proper divisors (1).

12931202957 is an equidigital number, since it uses as much as digits as its factorization.

12931202957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 12931202957 in words is "twelve billion, nine hundred thirty-one million, two hundred two thousand, nine hundred fifty-seven".