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252085 = 550417
BaseRepresentation
bin111101100010110101
3110210210111
4331202311
531031320
65223021
72066641
oct754265
9423714
10252085
11162439
12101a71
138a982
1467c21
154ea5a
hex3d8b5

252085 has 4 divisors (see below), whose sum is σ = 302508. Its totient is φ = 201664.

The previous prime is 252079. The next prime is 252101. The reversal of 252085 is 580252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86436 + 165649 = 294^2 + 407^2 .

It is a cyclic number.

It is not a de Polignac number, because 252085 - 211 = 250037 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 25204 + ... + 25213.

It is an arithmetic number, because the mean of its divisors is an integer number (75627).

2252085 is an apocalyptic number.

It is an amenable number.

252085 is a deficient number, since it is larger than the sum of its proper divisors (50423).

252085 is an equidigital number, since it uses as much as digits as its factorization.

252085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50422.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 252085 is about 502.0806708090. The cubic root of 252085 is about 63.1706969053.

It can be divided in two parts, 25 and 2085, that multiplied together give a palindrome (52125).

The spelling of 252085 in words is "two hundred fifty-two thousand, eighty-five".

Divisors: 1 5 50417 252085