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682431 = 31713381
BaseRepresentation
bin10100110100110111111
31021200010020
42212212333
5133314211
622343223
75541411
oct2464677
91250106
10682431
114267a2
1228ab13
131ab809
1413a9b1
15d7306
hexa69bf

682431 has 8 divisors (see below), whose sum is σ = 963504. Its totient is φ = 428160.

The previous prime is 682427. The next prime is 682439. The reversal of 682431 is 134286.

It is a happy number.

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

It is not a de Polignac number, because 682431 - 22 = 682427 is a prime.

It is a super-2 number, since 2×6824312 = 931424139522, which contains 22 as substring.

682431 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6640 + ... + 6741.

It is an arithmetic number, because the mean of its divisors is an integer number (120438).

2682431 is an apocalyptic number.

682431 is a deficient number, since it is larger than the sum of its proper divisors (281073).

682431 is a wasteful number, since it uses less digits than its factorization.

682431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13401.

The product of its digits is 1152, while the sum is 24.

The square root of 682431 is about 826.0938203376. The cubic root of 682431 is about 88.0412599217.

The spelling of 682431 in words is "six hundred eighty-two thousand, four hundred thirty-one".

Divisors: 1 3 17 51 13381 40143 227477 682431