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13060906813 = 29450376097
BaseRepresentation
bin11000010100111110…
…11001111100111101
31020201020101210220101
430022133121330331
5203222043004223
610000004321101
7641442606343
oct141237317475
936636353811
1013060906813
1155a25a5669
1226460a3191
131301ba8636
148bc8a1993
155169834ad
hex30a7d9f3d

13060906813 has 4 divisors (see below), whose sum is σ = 13511282940. Its totient is φ = 12610530688.

The previous prime is 13060906777. The next prime is 13060906819. The reversal of 13060906813 is 31860906031.

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 6142327129 + 6918579684 = 78373^2 + 83178^2 .

It is a cyclic number.

It is not a de Polignac number, because 13060906813 - 233 = 4470972221 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 (13060906819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225188020 + ... + 225188077.

It is an arithmetic number, because the mean of its divisors is an integer number (3377820735).

Almost surely, 213060906813 is an apocalyptic number.

It is an amenable number.

13060906813 is a deficient number, since it is larger than the sum of its proper divisors (450376127).

13060906813 is an equidigital number, since it uses as much as digits as its factorization.

13060906813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450376126.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 13060906813 in words is "thirteen billion, sixty million, nine hundred six thousand, eight hundred thirteen".

Divisors: 1 29 450376097 13060906813