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2823081 = 3941027
BaseRepresentation
bin1010110001001110101001
312022102112120
422301032221
51210314311
6140301453
732665362
oct12611651
95272476
102823081
111659028
12b41889
1377ac81
14536b69
153ab706
hex2b13a9

2823081 has 4 divisors (see below), whose sum is σ = 3764112. Its totient is φ = 1882052.

The previous prime is 2823059. The next prime is 2823101. The reversal of 2823081 is 1803282.

2823081 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.

It is a cyclic number.

It is not a de Polignac number, because 2823081 - 29 = 2822569 is a prime.

It is a super-2 number, since 2×28230812 = 15939572665122, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2803081) by changing a digit.

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, 470511 + ... + 470516.

It is an arithmetic number, because the mean of its divisors is an integer number (941028).

22823081 is an apocalyptic number.

It is an amenable number.

2823081 is a deficient number, since it is larger than the sum of its proper divisors (941031).

2823081 is an equidigital number, since it uses as much as digits as its factorization.

2823081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941030.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 2823081 is about 1680.2026663471. The cubic root of 2823081 is about 141.3321979607.

The spelling of 2823081 in words is "two million, eight hundred twenty-three thousand, eighty-one".

Divisors: 1 3 941027 2823081