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13242085 = 512372141
BaseRepresentation
bin110010100000…
…111011100101
3220220202201121
4302200323211
511342221320
61151453541
7220361443
oct62407345
926822647
1013242085
117524a7a
1245272b1
13298846c
141a89b93
1512688aa
hexca0ee5

13242085 has 8 divisors (see below), whose sum is σ = 15910776. Its totient is φ = 10580160.

The previous prime is 13242079. The next prime is 13242101. The reversal of 13242085 is 58024231.

13242085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6022116 + 7219969 = 2454^2 + 2687^2 .

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

It is not a de Polignac number, because 13242085 - 213 = 13233893 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5115 + ... + 7255.

It is an arithmetic number, because the mean of its divisors is an integer number (1988847).

Almost surely, 213242085 is an apocalyptic number.

It is an amenable number.

13242085 is a deficient number, since it is larger than the sum of its proper divisors (2668691).

13242085 is a wasteful number, since it uses less digits than its factorization.

13242085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3383.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 13242085 is about 3638.9675733647. The cubic root of 13242085 is about 236.5840472925.

The spelling of 13242085 in words is "thirteen million, two hundred forty-two thousand, eighty-five".

Divisors: 1 5 1237 2141 6185 10705 2648417 13242085