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13082109 = 34360703
BaseRepresentation
bin110001111001…
…110111111101
3220121122021120
4301321313331
511322111414
61144221153
7216124155
oct61716775
926548246
1013082109
117425867
12446a7b9
1329306c1
141a47765
1512362a9
hexc79dfd

13082109 has 4 divisors (see below), whose sum is σ = 17442816. Its totient is φ = 8721404.

The previous prime is 13082107. The next prime is 13082159. The reversal of 13082109 is 90128031.

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 not a de Polignac number, because 13082109 - 21 = 13082107 is a prime.

It is a super-2 number, since 2×130821092 = 342283151775762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13082107) 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, 2180349 + ... + 2180354.

It is an arithmetic number, because the mean of its divisors is an integer number (4360704).

Almost surely, 213082109 is an apocalyptic number.

It is an amenable number.

13082109 is a deficient number, since it is larger than the sum of its proper divisors (4360707).

13082109 is an equidigital number, since it uses as much as digits as its factorization.

13082109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360706.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 13082109 is about 3616.9198221691. The cubic root of 13082109 is about 235.6274705349.

It can be divided in two parts, 1308 and 2109, that multiplied together give a palindrome (2758572).

The spelling of 13082109 in words is "thirteen million, eighty-two thousand, one hundred nine".

Divisors: 1 3 4360703 13082109