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2828345 = 51353821
BaseRepresentation
bin1010110010100000111001
312022200202112
422302200321
51211001340
6140342105
733016622
oct12624071
95280675
102828345
111661a83
12b44935
137804a0
14538a49
153ad065
hex2b2839

2828345 has 16 divisors (see below), whose sum is σ = 3728592. Its totient is φ = 2046720.

The previous prime is 2828339. The next prime is 2828351. The reversal of 2828345 is 5438282.

It is an interprime number because it is at equal distance from previous prime (2828339) and next prime (2828351).

It can be written as a sum of positive squares in 8 ways, for example, as 200704 + 2627641 = 448^2 + 1621^2 .

It is not a de Polignac number, because 2828345 - 26 = 2828281 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3035 + ... + 3855.

It is an arithmetic number, because the mean of its divisors is an integer number (233037).

22828345 is an apocalyptic number.

It is an amenable number.

2828345 is a deficient number, since it is larger than the sum of its proper divisors (900247).

2828345 is a wasteful number, since it uses less digits than its factorization.

2828345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892.

The product of its digits is 15360, while the sum is 32.

The square root of 2828345 is about 1681.7684144971. The cubic root of 2828345 is about 141.4199874783.

The spelling of 2828345 in words is "two million, eight hundred twenty-eight thousand, three hundred forty-five".

Divisors: 1 5 13 53 65 265 689 821 3445 4105 10673 43513 53365 217565 565669 2828345