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13106012551 = 121310804627
BaseRepresentation
bin11000011010010110…
…11110000110000111
31020211101021102100021
430031023132012013
5203320114400201
610004255200011
7642531161062
oct141513360607
936741242307
1013106012551
115616003235
122659216007
13130b33c118
148c48838d9
1551a8e2ea1
hex30d2de187

13106012551 has 4 divisors (see below), whose sum is σ = 13116818392. Its totient is φ = 13095206712.

The previous prime is 13106012537. The next prime is 13106012567. The reversal of 13106012551 is 15521060131.

It is a happy number.

13106012551 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 an emirpimes, since its reverse is a distinct semiprime: 15521060131 = 73361211571.

It is a cyclic number.

It is not a de Polignac number, because 13106012551 - 25 = 13106012519 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 (13106012501) 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, 5401101 + ... + 5403526.

It is an arithmetic number, because the mean of its divisors is an integer number (3279204598).

Almost surely, 213106012551 is an apocalyptic number.

13106012551 is a deficient number, since it is larger than the sum of its proper divisors (10805841).

13106012551 is a wasteful number, since it uses less digits than its factorization.

13106012551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10805840.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 13106012551 its reverse (15521060131), we get a palindrome (28627072682).

The spelling of 13106012551 in words is "thirteen billion, one hundred six million, twelve thousand, five hundred fifty-one".

Divisors: 1 1213 10804627 13106012551