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13957395629 is a prime number
BaseRepresentation
bin11001111111110110…
…01111010010101101
31100000201022011100212
430333323033102231
5212041043130004
610224551232205
71002606622352
oct147773172255
940021264325
1013957395629
115a12649a11
122856378665
131415842aa8
14965986629
1556a51996e
hex33fecf4ad

13957395629 has 2 divisors, whose sum is σ = 13957395630. Its totient is φ = 13957395628.

The previous prime is 13957395469. The next prime is 13957395643. The reversal of 13957395629 is 92659375931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13806720004 + 150675625 = 117502^2 + 12275^2 .

It is a cyclic number.

It is not a de Polignac number, because 13957395629 - 212 = 13957391533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13957395679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6978697814 + 6978697815.

It is an arithmetic number, because the mean of its divisors is an integer number (6978697815).

Almost surely, 213957395629 is an apocalyptic number.

It is an amenable number.

13957395629 is a deficient number, since it is larger than the sum of its proper divisors (1).

13957395629 is an equidigital number, since it uses as much as digits as its factorization.

13957395629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13778100, while the sum is 59.

The spelling of 13957395629 in words is "thirteen billion, nine hundred fifty-seven million, three hundred ninety-five thousand, six hundred twenty-nine".