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682664 = 2385333
BaseRepresentation
bin10100110101010101000
31021200102212
42212222220
5133321124
622344252
75542163
oct2465250
91250385
10682664
11426994
1228b088
131ab958
1413aada
15d740e
hexa6aa8

682664 has 8 divisors (see below), whose sum is σ = 1280010. Its totient is φ = 341328.

The previous prime is 682657. The next prime is 682673. The reversal of 682664 is 466286.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 624100 + 58564 = 790^2 + 242^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 682664.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42659 + ... + 42674.

2682664 is an apocalyptic number.

It is an amenable number.

682664 is a deficient number, since it is larger than the sum of its proper divisors (597346).

682664 is a wasteful number, since it uses less digits than its factorization.

682664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85339 (or 85335 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 682664 is about 826.2348334463. The cubic root of 682664 is about 88.0512786535.

Adding to 682664 its sum of digits (32), we get a triangular number (682696 = T1168).

The spelling of 682664 in words is "six hundred eighty-two thousand, six hundred sixty-four".

Divisors: 1 2 4 8 85333 170666 341332 682664