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8306005 = 514911149
BaseRepresentation
bin11111101011110101010101
3120121222200211
4133223311111
54111243010
6454005421
7130412521
oct37536525
916558624
108306005
114763474
122946871
13194a7c6
141162d81
15ae108a
hex7ebd55

8306005 has 8 divisors (see below), whose sum is σ = 10035000. Its totient is φ = 6599616.

The previous prime is 8305993. The next prime is 8306027. The reversal of 8306005 is 5006038.

It can be written as a sum of positive squares in 4 ways, for example, as 81 + 8305924 = 9^2 + 2882^2 .

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 8306005 - 211 = 8303957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4830 + ... + 6319.

It is an arithmetic number, because the mean of its divisors is an integer number (1254375).

Almost surely, 28306005 is an apocalyptic number.

It is an amenable number.

8306005 is a deficient number, since it is larger than the sum of its proper divisors (1728995).

8306005 is a wasteful number, since it uses less digits than its factorization.

8306005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11303.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 8306005 is about 2882.0140527069. The cubic root of 8306005 is about 202.5182018897.

The spelling of 8306005 in words is "eight million, three hundred six thousand, five".

Divisors: 1 5 149 745 11149 55745 1661201 8306005