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1000085 = 5200017
BaseRepresentation
bin11110100001010010101
31212210212012
43310022111
5224000320
633234005
711333462
oct3641225
91783765
101000085
11623419
12402905
13290288
141c0669
1514b4c5
hexf4295

1000085 has 4 divisors (see below), whose sum is σ = 1200108. Its totient is φ = 800064.

The previous prime is 1000081. The next prime is 1000099. The reversal of 1000085 is 5800001.

Adding to 1000085 its reverse (5800001), we get a palindrome (6800086).

1000085 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: 5800001 = 46312527.

It can be written as a sum of positive squares in 2 ways, for example, as 209764 + 790321 = 458^2 + 889^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000085 - 22 = 1000081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000081) 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, 100004 + ... + 100013.

It is an arithmetic number, because the mean of its divisors is an integer number (300027).

21000085 is an apocalyptic number.

It is an amenable number.

1000085 is a deficient number, since it is larger than the sum of its proper divisors (200023).

1000085 is an equidigital number, since it uses as much as digits as its factorization.

1000085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200022.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1000085 is about 1000.0424990969. The cubic root of 1000085 is about 100.0028332531.

The spelling of 1000085 in words is "one million, eighty-five", and thus it is an aban number and an uban number.

Divisors: 1 5 200017 1000085