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252529 = 1913291
BaseRepresentation
bin111101101001110001
3110211101221
4331221301
531040104
65225041
72101144
oct755161
9424357
10252529
11162802
12102181
138ac34
146805b
154ec54
hex3da71

252529 has 4 divisors (see below), whose sum is σ = 265840. Its totient is φ = 239220.

The previous prime is 252509. The next prime is 252533. The reversal of 252529 is 925252.

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.

It is a cyclic number.

It is not a de Polignac number, because 252529 - 27 = 252401 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6627 + ... + 6664.

It is an arithmetic number, because the mean of its divisors is an integer number (66460).

2252529 is an apocalyptic number.

It is an amenable number.

252529 is a deficient number, since it is larger than the sum of its proper divisors (13311).

252529 is a wasteful number, since it uses less digits than its factorization.

252529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13310.

The product of its digits is 1800, while the sum is 25.

The square root of 252529 is about 502.5226363061. The cubic root of 252529 is about 63.2077628930.

The spelling of 252529 in words is "two hundred fifty-two thousand, five hundred twenty-nine".

Divisors: 1 19 13291 252529