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6806530 = 256710159
BaseRepresentation
bin11001111101110000000010
3110210210210201
4121331300002
53220302110
6401515414
7111566053
oct31756002
913723721
106806530
113929935
122342b6a
131544143
14c9272a
158e6b3a
hex67dc02

6806530 has 16 divisors (see below), whose sum is σ = 12435840. Its totient is φ = 2681712.

The previous prime is 6806521. The next prime is 6806537. The reversal of 6806530 is 356086.

It is not an unprimeable number, because it can be changed into a prime (6806537) by changing a digit.

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, 4410 + ... + 5749.

It is an arithmetic number, because the mean of its divisors is an integer number (777240).

Almost surely, 26806530 is an apocalyptic number.

6806530 is a deficient number, since it is larger than the sum of its proper divisors (5629310).

6806530 is a wasteful number, since it uses less digits than its factorization.

6806530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10233.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 6806530 is about 2608.9327319806. The cubic root of 6806530 is about 189.5142717767.

The spelling of 6806530 in words is "six million, eight hundred six thousand, five hundred thirty".

Divisors: 1 2 5 10 67 134 335 670 10159 20318 50795 101590 680653 1361306 3403265 6806530