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13125011077 = 93411405097
BaseRepresentation
bin11000011100100111…
…11100011010000101
31020212201000122102101
430032103330122011
5203340000323302
610010214312101
7643151516263
oct141623743205
936781018371
1013125011077
1156257aa0a2
122663658631
131312261759
148c71cb433
1551c3e7287
hex30e4fc685

13125011077 has 4 divisors (see below), whose sum is σ = 13126425516. Its totient is φ = 13123596640.

The previous prime is 13125011069. The next prime is 13125011087. The reversal of 13125011077 is 77011052131.

13125011077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8293927041 + 4831084036 = 91071^2 + 69506^2 .

It is a cyclic number.

It is not a de Polignac number, because 13125011077 - 23 = 13125011069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125011017) 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 in 3 ways as a sum of consecutive naturals, for example, 693208 + ... + 711889.

It is an arithmetic number, because the mean of its divisors is an integer number (3281606379).

Almost surely, 213125011077 is an apocalyptic number.

It is an amenable number.

13125011077 is a deficient number, since it is larger than the sum of its proper divisors (1414439).

13125011077 is an equidigital number, since it uses as much as digits as its factorization.

13125011077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414438.

The product of its (nonzero) digits is 1470, while the sum is 28.

The spelling of 13125011077 in words is "thirteen billion, one hundred twenty-five million, eleven thousand, seventy-seven".

Divisors: 1 9341 1405097 13125011077