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1052185 = 5210437
BaseRepresentation
bin100000000111000011001
31222110022211
410000320121
5232132220
634315121
711641411
oct4007031
91873284
101052185
11659582
12428aa1
132aabc4
141d5641
1515bb5a
hex100e19

1052185 has 4 divisors (see below), whose sum is σ = 1262628. Its totient is φ = 841744.

The previous prime is 1052179. The next prime is 1052197. The reversal of 1052185 is 5812501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5812501 = 8965309.

It can be written as a sum of positive squares in 2 ways, for example, as 646416 + 405769 = 804^2 + 637^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052185 - 219 = 527897 is a prime.

It is a super-2 number, since 2×10521852 = 2214186548450, which contains 22 as substring.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105214 + ... + 105223.

It is an arithmetic number, because the mean of its divisors is an integer number (315657).

21052185 is an apocalyptic number.

It is an amenable number.

1052185 is a deficient number, since it is larger than the sum of its proper divisors (210443).

1052185 is an equidigital number, since it uses as much as digits as its factorization.

1052185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210442.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1052185 is about 1025.7606933393. The cubic root of 1052185 is about 101.7100892478.

Adding to 1052185 its reverse (5812501), we get a palindrome (6864686).

The spelling of 1052185 in words is "one million, fifty-two thousand, one hundred eighty-five".

Divisors: 1 5 210437 1052185