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682641 = 33131193
BaseRepresentation
bin10100110101010010001
31021200102000
42212222101
5133321031
622344213
75542131
oct2465221
91250360
10682641
11426973
1228b069
131ab93b
1413aac1
15d73e6
hexa6a91

682641 has 16 divisors (see below), whose sum is σ = 1024320. Its totient is φ = 449280.

The previous prime is 682637. The next prime is 682657. The reversal of 682641 is 146286.

It is not a de Polignac number, because 682641 - 22 = 682637 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (682141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3441 + ... + 3633.

It is an arithmetic number, because the mean of its divisors is an integer number (64020).

2682641 is an apocalyptic number.

It is an amenable number.

682641 is a deficient number, since it is larger than the sum of its proper divisors (341679).

682641 is a wasteful number, since it uses less digits than its factorization.

682641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 327 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 682641 is about 826.2209147680. The cubic root of 682641 is about 88.0502897814.

It can be divided in two parts, 68264 and 1, that added together give a triangular number (68265 = T369).

The spelling of 682641 in words is "six hundred eighty-two thousand, six hundred forty-one".

Divisors: 1 3 9 27 131 193 393 579 1179 1737 3537 5211 25283 75849 227547 682641