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668082 = 23111347
BaseRepresentation
bin10100011000110110010
31020221102210
42203012302
5132334312
622152550
75451522
oct2430662
91227383
10668082
11416a38
12282756
131a511c
14135682
15d2e3c
hexa31b2

668082 has 8 divisors (see below), whose sum is σ = 1336176. Its totient is φ = 222692.

The previous prime is 668069. The next prime is 668089. The reversal of 668082 is 280866.

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

668082 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (668089) by changing a digit.

668082 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55668 + ... + 55679.

It is an arithmetic number, because the mean of its divisors is an integer number (167022).

2668082 is an apocalyptic number.

668082 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

668082 is a wasteful number, since it uses less digits than its factorization.

668082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111352.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 668082 is about 817.3628325291. The cubic root of 668082 is about 87.4198231545.

The spelling of 668082 in words is "six hundred sixty-eight thousand, eighty-two".

Divisors: 1 2 3 6 111347 222694 334041 668082