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13266385 = 511241207
BaseRepresentation
bin110010100110…
…110111010001
3220222000001121
4302212313101
511344011020
61152202241
7220522336
oct62466721
926860047
1013266385
117541260
124539381
132996542
141a9498d
151270baa
hexca6dd1

13266385 has 8 divisors (see below), whose sum is σ = 17366976. Its totient is φ = 9648240.

The previous prime is 13266371. The next prime is 13266397. The reversal of 13266385 is 58366231.

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

It is not a de Polignac number, because 13266385 - 25 = 13266353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13266385.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 120549 + ... + 120658.

It is an arithmetic number, because the mean of its divisors is an integer number (2170872).

Almost surely, 213266385 is an apocalyptic number.

It is an amenable number.

13266385 is a deficient number, since it is larger than the sum of its proper divisors (4100591).

13266385 is a wasteful number, since it uses less digits than its factorization.

13266385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241223.

The product of its digits is 25920, while the sum is 34.

The square root of 13266385 is about 3642.3049021190. The cubic root of 13266385 is about 236.7286740476.

The spelling of 13266385 in words is "thirteen million, two hundred sixty-six thousand, three hundred eighty-five".

Divisors: 1 5 11 55 241207 1206035 2653277 13266385