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3280345 = 5743883
BaseRepresentation
bin1100100000110111011001
320011122210021
430200313121
51314432340
6154150441
736611455
oct14406731
96148707
103280345
111940632
121122421
138ab143
14615665
1544be4a
hex320dd9

3280345 has 8 divisors (see below), whose sum is σ = 3946176. Its totient is φ = 2617776.

The previous prime is 3280339. The next prime is 3280357. The reversal of 3280345 is 5430823.

3280345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3280345 - 25 = 3280313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3274 + ... + 4156.

It is an arithmetic number, because the mean of its divisors is an integer number (493272).

Almost surely, 23280345 is an apocalyptic number.

It is an amenable number.

3280345 is a deficient number, since it is larger than the sum of its proper divisors (665831).

3280345 is an equidigital number, since it uses as much as digits as its factorization.

3280345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 3280345 is about 1811.1722723143. The cubic root of 3280345 is about 148.5843859772.

The spelling of 3280345 in words is "three million, two hundred eighty thousand, three hundred forty-five".

Divisors: 1 5 743 883 3715 4415 656069 3280345