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13106645 = 53184559
BaseRepresentation
bin110001111111…
…110111010101
3220122212221022
4301333313111
511323403040
61144530525
7216255536
oct61776725
926585838
1013106645
117442242
124480a45
13293b916
141a5268d
15123d6b5
hexc7fdd5

13106645 has 8 divisors (see below), whose sum is σ = 16235520. Its totient is φ = 10146960.

The previous prime is 13106641. The next prime is 13106659. The reversal of 13106645 is 54660131.

13106645 is nontrivially palindromic in base 3.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13106645 - 22 = 13106641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13106641) 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 7 ways as a sum of consecutive naturals, for example, 42125 + ... + 42434.

It is an arithmetic number, because the mean of its divisors is an integer number (2029440).

Almost surely, 213106645 is an apocalyptic number.

It is an amenable number.

13106645 is a deficient number, since it is larger than the sum of its proper divisors (3128875).

13106645 is an equidigital number, since it uses as much as digits as its factorization.

13106645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84595.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 13106645 is about 3620.3100695935. The cubic root of 13106645 is about 235.7746880055.

Adding to 13106645 its reverse (54660131), we get a palindrome (67766776).

The spelling of 13106645 in words is "thirteen million, one hundred six thousand, six hundred forty-five".

Divisors: 1 5 31 155 84559 422795 2621329 13106645