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252404 = 2289709
BaseRepresentation
bin111101100111110100
3110211020022
4331213310
531034104
65224312
72100605
oct754764
9424208
10252404
111626a9
12102098
138ab69
1467dac
154ebbe
hex3d9f4

252404 has 12 divisors (see below), whose sum is σ = 447300. Its totient is φ = 124608.

The previous prime is 252401. The next prime is 252409. The reversal of 252404 is 404252.

252404 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40804 + 211600 = 202^2 + 460^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252401) 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, 2 + ... + 710.

It is an arithmetic number, because the mean of its divisors is an integer number (37275).

2252404 is an apocalyptic number.

It is an amenable number.

252404 is a deficient number, since it is larger than the sum of its proper divisors (194896).

252404 is a wasteful number, since it uses less digits than its factorization.

252404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 252404 is about 502.3982484046. The cubic root of 252404 is about 63.1973320457.

Adding to 252404 its reverse (404252), we get a palindrome (656656).

It can be divided in two parts, 252 and 404, that added together give a palindrome (656).

The spelling of 252404 in words is "two hundred fifty-two thousand, four hundred four".

Divisors: 1 2 4 89 178 356 709 1418 2836 63101 126202 252404