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13695385 = 511222637
BaseRepresentation
bin110100001111…
…100110011001
3221202210112111
4310033212121
512001223020
61205312321
7224260144
oct64174631
927683474
1013695385
117804600
1247056a1
132ab68a2
141b6705b
151307d5a
hexd0f999

13695385 has 12 divisors (see below), whose sum is σ = 18065124. Its totient is φ = 9959840.

The previous prime is 13695349. The next prime is 13695389. The reversal of 13695385 is 58359631.

13695385 = T414 + T415 + ... + T534.

It can be written as a sum of positive squares in 2 ways, for example, as 4276624 + 9418761 = 2068^2 + 3069^2 .

It is not a de Polignac number, because 13695385 - 219 = 13171097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13695389) 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 11 ways as a sum of consecutive naturals, for example, 10714 + ... + 11923.

It is an arithmetic number, because the mean of its divisors is an integer number (1505427).

Almost surely, 213695385 is an apocalyptic number.

It is an amenable number.

13695385 is a deficient number, since it is larger than the sum of its proper divisors (4369739).

13695385 is a wasteful number, since it uses less digits than its factorization.

13695385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22664 (or 22653 counting only the distinct ones).

The product of its digits is 97200, while the sum is 40.

The square root of 13695385 is about 3700.7276311558. The cubic root of 13695385 is about 239.2533799672.

The spelling of 13695385 in words is "thirteen million, six hundred ninety-five thousand, three hundred eighty-five".

Divisors: 1 5 11 55 121 605 22637 113185 249007 1245035 2739077 13695385