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53423171 = 409130619
BaseRepresentation
bin1100101111001…
…0110001000011
310201112011210222
43023302301003
5102134020141
65145013255
71216042454
oct313626103
9121464728
1053423171
112817968a
1215a8422b
13b0b6559
14714912b
154a5414b
hex32f2c43

53423171 has 4 divisors (see below), whose sum is σ = 53554200. Its totient is φ = 53292144.

The previous prime is 53423159. The next prime is 53423173. The reversal of 53423171 is 17132435.

53423171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17132435 = 53426487.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53423171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53423171.

It is not an unprimeable number, because it can be changed into a prime (53423173) 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 3 ways as a sum of consecutive naturals, for example, 64901 + ... + 65718.

It is an arithmetic number, because the mean of its divisors is an integer number (13388550).

Almost surely, 253423171 is an apocalyptic number.

53423171 is a deficient number, since it is larger than the sum of its proper divisors (131029).

53423171 is a wasteful number, since it uses less digits than its factorization.

53423171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131028.

The product of its digits is 2520, while the sum is 26.

The square root of 53423171 is about 7309.1156099764. The cubic root of 53423171 is about 376.6256441954.

The spelling of 53423171 in words is "fifty-three million, four hundred twenty-three thousand, one hundred seventy-one".

Divisors: 1 409 130619 53423171