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13285469 is a prime number
BaseRepresentation
bin110010101011…
…100001011101
3220222222020102
4302223201131
511400113334
61152430445
7220632101
oct62534135
926888212
1013285469
11755462a
124548425
1329a2132
141a9b901
15127667e
hexcab85d

13285469 has 2 divisors, whose sum is σ = 13285470. Its totient is φ = 13285468.

The previous prime is 13285429. The next prime is 13285477. The reversal of 13285469 is 96458231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12996025 + 289444 = 3605^2 + 538^2 .

It is a cyclic number.

It is not a de Polignac number, because 13285469 - 28 = 13285213 is a prime.

It is a super-2 number, since 2×132854692 = 353007373099922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13285429) 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 as a sum of consecutive naturals, namely, 6642734 + 6642735.

It is an arithmetic number, because the mean of its divisors is an integer number (6642735).

Almost surely, 213285469 is an apocalyptic number.

It is an amenable number.

13285469 is a deficient number, since it is larger than the sum of its proper divisors (1).

13285469 is an equidigital number, since it uses as much as digits as its factorization.

13285469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 13285469 is about 3644.9237303406. The cubic root of 13285469 is about 236.8421328750.

The spelling of 13285469 in words is "thirteen million, two hundred eighty-five thousand, four hundred sixty-nine".