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875081 = 2338047
BaseRepresentation
bin11010101101001001001
31122110101102
43111221021
5211000311
630431145
710303154
oct3255111
91573342
10875081
11548509
123624b5
132483cc
1418ac9b
1512443b
hexd5a49

875081 has 4 divisors (see below), whose sum is σ = 913152. Its totient is φ = 837012.

The previous prime is 875033. The next prime is 875089. The reversal of 875081 is 180578.

It is a happy number.

875081 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 180578 = 290289.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-875081 is a prime.

It is a super-2 number, since 2×8750812 = 1531533513122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (875089) 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, 19001 + ... + 19046.

It is an arithmetic number, because the mean of its divisors is an integer number (228288).

2875081 is an apocalyptic number.

It is an amenable number.

875081 is a deficient number, since it is larger than the sum of its proper divisors (38071).

875081 is a wasteful number, since it uses less digits than its factorization.

875081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38070.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 875081 is about 935.4576420127. The cubic root of 875081 is about 95.6495104271.

The spelling of 875081 in words is "eight hundred seventy-five thousand, eighty-one".

Divisors: 1 23 38047 875081