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3288641 = 10213221
BaseRepresentation
bin1100100010111001000001
320012002011112
430202321001
51320214031
6154253105
736644606
oct14427101
96162145
103288641
111946894
121127195
138b1b55
146186ad
1544e62b
hex322e41

3288641 has 4 divisors (see below), whose sum is σ = 3292884. Its totient is φ = 3284400.

The previous prime is 3288631. The next prime is 3288673. The reversal of 3288641 is 1468823.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1468823 = 12011223.

It can be written as a sum of positive squares in 2 ways, for example, as 2238016 + 1050625 = 1496^2 + 1025^2 .

It is a cyclic number.

It is not a de Polignac number, because 3288641 - 210 = 3287617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3288598 and 3288607.

It is not an unprimeable number, because it can be changed into a prime (3288611) 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, 590 + ... + 2631.

It is an arithmetic number, because the mean of its divisors is an integer number (823221).

Almost surely, 23288641 is an apocalyptic number.

It is an amenable number.

3288641 is a deficient number, since it is larger than the sum of its proper divisors (4243).

3288641 is a wasteful number, since it uses less digits than its factorization.

3288641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242.

The product of its digits is 9216, while the sum is 32.

The square root of 3288641 is about 1813.4610555510. The cubic root of 3288641 is about 148.7095372843.

The spelling of 3288641 in words is "three million, two hundred eighty-eight thousand, six hundred forty-one".

Divisors: 1 1021 3221 3288641