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3628805 = 52932477
BaseRepresentation
bin1101110101111100000101
320211100210012
431311330011
51412110210
6205440005
742562415
oct15657405
96740705
103628805
112059414
121270005
139a092b
146a6645
154ba305
hex375f05

3628805 has 8 divisors (see below), whose sum is σ = 4371192. Its totient is φ = 2891968.

The previous prime is 3628789. The next prime is 3628811. The reversal of 3628805 is 5088263.

It can be written as a sum of positive squares in 4 ways, for example, as 1151329 + 2477476 = 1073^2 + 1574^2 .

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 3628805 - 24 = 3628789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227 + ... + 2703.

It is an arithmetic number, because the mean of its divisors is an integer number (546399).

Almost surely, 23628805 is an apocalyptic number.

It is an amenable number.

3628805 is a deficient number, since it is larger than the sum of its proper divisors (742387).

3628805 is a wasteful number, since it uses less digits than its factorization.

3628805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 3628805 is about 1904.9422563427. The cubic root of 3628805 is about 153.6695703771.

The spelling of 3628805 in words is "three million, six hundred twenty-eight thousand, eight hundred five".

Divisors: 1 5 293 1465 2477 12385 725761 3628805