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13252143 = 341107741
BaseRepresentation
bin110010100011…
…011000101111
3220221021112010
4302203120233
511343032033
61152012303
7220432662
oct62433057
926837463
1013252143
117531593
124531093
13298cc08
141a8d6d9
15126b863
hexca362f

13252143 has 8 divisors (see below), whose sum is σ = 18100656. Its totient is φ = 8619200.

The previous prime is 13252133. The next prime is 13252157. The reversal of 13252143 is 34125231.

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

It is a cyclic number.

It is not a de Polignac number, because 13252143 - 212 = 13248047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13252123) 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 7 ways as a sum of consecutive naturals, for example, 53748 + ... + 53993.

It is an arithmetic number, because the mean of its divisors is an integer number (2262582).

Almost surely, 213252143 is an apocalyptic number.

13252143 is a deficient number, since it is larger than the sum of its proper divisors (4848513).

13252143 is a wasteful number, since it uses less digits than its factorization.

13252143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107785.

The product of its digits is 720, while the sum is 21.

The square root of 13252143 is about 3640.3492964275. The cubic root of 13252143 is about 236.6439311184.

Adding to 13252143 its reverse (34125231), we get a palindrome (47377374).

The spelling of 13252143 in words is "thirteen million, two hundred fifty-two thousand, one hundred forty-three".

Divisors: 1 3 41 123 107741 323223 4417381 13252143