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13275429 = 34425143
BaseRepresentation
bin110010101001…
…000100100101
3220222110110120
4302221010211
511344303204
61152312153
7220560606
oct62510445
926873416
1013275429
117548032
124542659
13299a6ab
141a97dad
1512736d9
hexca9125

13275429 has 4 divisors (see below), whose sum is σ = 17700576. Its totient is φ = 8850284.

The previous prime is 13275421. The next prime is 13275481. The reversal of 13275429 is 92457231.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92457231 = 330819077.

It is a cyclic number.

It is not a de Polignac number, because 13275429 - 23 = 13275421 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13275429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13275421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212569 + ... + 2212574.

It is an arithmetic number, because the mean of its divisors is an integer number (4425144).

Almost surely, 213275429 is an apocalyptic number.

It is an amenable number.

13275429 is a deficient number, since it is larger than the sum of its proper divisors (4425147).

13275429 is an equidigital number, since it uses as much as digits as its factorization.

13275429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425146.

The product of its digits is 15120, while the sum is 33.

The square root of 13275429 is about 3643.5462121400. The cubic root of 13275429 is about 236.7824562898.

The spelling of 13275429 in words is "thirteen million, two hundred seventy-five thousand, four hundred twenty-nine".

Divisors: 1 3 4425143 13275429