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13088917 = 90714431
BaseRepresentation
bin110001111011…
…100010010101
3220121222121201
4301323202111
511322321132
61144312501
7216153052
oct61734225
926558551
1013088917
11742a996
124472731
13293382a
141a4a029
1512382e7
hexc7b895

13088917 has 4 divisors (see below), whose sum is σ = 13104256. Its totient is φ = 13073580.

The previous prime is 13088879. The next prime is 13088923. The reversal of 13088917 is 71988031.

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-13088917 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 (13088927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6309 + ... + 8122.

It is an arithmetic number, because the mean of its divisors is an integer number (3276064).

Almost surely, 213088917 is an apocalyptic number.

It is an amenable number.

13088917 is a deficient number, since it is larger than the sum of its proper divisors (15339).

13088917 is an equidigital number, since it uses as much as digits as its factorization.

13088917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15338.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 13088917 is about 3617.8608320387. The cubic root of 13088917 is about 235.6683373816.

The spelling of 13088917 in words is "thirteen million, eighty-eight thousand, nine hundred seventeen".

Divisors: 1 907 14431 13088917