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682425 = 3452337
BaseRepresentation
bin10100110100110111001
31021200010000
42212212321
5133314200
622343213
75541402
oct2464671
91250100
10682425
11426797
1228ab09
131ab803
1413a9a9
15d7300
hexa69b9

682425 has 30 divisors (see below), whose sum is σ = 1267838. Its totient is φ = 362880.

The previous prime is 682421. The next prime is 682427. The reversal of 682425 is 524286.

It can be written as a sum of positive squares in 3 ways, for example, as 11664 + 670761 = 108^2 + 819^2 .

It is not a de Polignac number, because 682425 - 22 = 682421 is a prime.

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

It is a Duffinian number.

It is a nialpdrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 682425.

It is not an unprimeable number, because it can be changed into a prime (682421) 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 29 ways as a sum of consecutive naturals, for example, 1857 + ... + 2193.

2682425 is an apocalyptic number.

It is an amenable number.

682425 is a deficient number, since it is larger than the sum of its proper divisors (585413).

682425 is a wasteful number, since it uses less digits than its factorization.

682425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 345 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 682425 is about 826.0901887809. The cubic root of 682425 is about 88.0410018985.

The spelling of 682425 in words is "six hundred eighty-two thousand, four hundred twenty-five".

Divisors: 1 3 5 9 15 25 27 45 75 81 135 225 337 405 675 1011 1685 2025 3033 5055 8425 9099 15165 25275 27297 45495 75825 136485 227475 682425