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13012122313 = 19516669463
BaseRepresentation
bin11000001111001010…
…10011101011001001
31020120211121022011001
430013211103223021
5203122100403223
65551102535001
7640311133441
oct140745235311
936524538131
1013012122313
1155780050a3
122631897461
1312c4a57578
148b6203121
155125489ad
hex307953ac9

13012122313 has 4 divisors (see below), whose sum is σ = 13018793728. Its totient is φ = 13005450900.

The previous prime is 13012122307. The next prime is 13012122353. The reversal of 13012122313 is 31322121031.

13012122313 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13012122313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13012122353) 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, 3332781 + ... + 3336682.

It is an arithmetic number, because the mean of its divisors is an integer number (3254698432).

Almost surely, 213012122313 is an apocalyptic number.

It is an amenable number.

13012122313 is a deficient number, since it is larger than the sum of its proper divisors (6671415).

13012122313 is an equidigital number, since it uses as much as digits as its factorization.

13012122313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6671414.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13012122313 its reverse (31322121031), we get a palindrome (44334243344).

The spelling of 13012122313 in words is "thirteen billion, twelve million, one hundred twenty-two thousand, three hundred thirteen".

Divisors: 1 1951 6669463 13012122313