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682931 = 6710193
BaseRepresentation
bin10100110101110110011
31021200210202
42212232303
5133323211
622345415
75543024
oct2465663
91250722
10682931
11427107
1228b26b
131abb02
1413ac4b
15d753b
hexa6bb3

682931 has 4 divisors (see below), whose sum is σ = 693192. Its totient is φ = 672672.

The previous prime is 682901. The next prime is 682933. The reversal of 682931 is 139286.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-682931 is a prime.

It is a super-2 number, since 2×6829312 = 932789501522, which contains 22 as substring.

It is a d-powerful number, because it can be written as 65 + 85 + 95 + 219 + 310 + 1 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 682894 and 682903.

It is not an unprimeable number, because it can be changed into a prime (682933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5030 + ... + 5163.

It is an arithmetic number, because the mean of its divisors is an integer number (173298).

2682931 is an apocalyptic number.

682931 is a deficient number, since it is larger than the sum of its proper divisors (10261).

682931 is a wasteful number, since it uses less digits than its factorization.

682931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10260.

The product of its digits is 2592, while the sum is 29.

The square root of 682931 is about 826.3963939902. The cubic root of 682931 is about 88.0627565435.

The spelling of 682931 in words is "six hundred eighty-two thousand, nine hundred thirty-one".

Divisors: 1 67 10193 682931