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686341 = 1747859
BaseRepresentation
bin10100111100100000101
31021212111001
42213210011
5133430331
622413301
75555665
oct2474405
91255431
10686341
11429727
12291231
131b0526
1413c1a5
15d8561
hexa7905

686341 has 8 divisors (see below), whose sum is σ = 743040. Its totient is φ = 631488.

The previous prime is 686339. The next prime is 686353. The reversal of 686341 is 143686.

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

It is a cyclic number.

It is not a de Polignac number, because 686341 - 21 = 686339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370 + ... + 1228.

It is an arithmetic number, because the mean of its divisors is an integer number (92880).

2686341 is an apocalyptic number.

It is an amenable number.

686341 is a deficient number, since it is larger than the sum of its proper divisors (56699).

686341 is a wasteful number, since it uses less digits than its factorization.

686341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923.

The product of its digits is 3456, while the sum is 28.

The square root of 686341 is about 828.4569994876. The cubic root of 686341 is about 88.2090844419.

It can be divided in two parts, 68634 and 1, that added together give a triangular number (68635 = T370).

The spelling of 686341 in words is "six hundred eighty-six thousand, three hundred forty-one".

Divisors: 1 17 47 799 859 14603 40373 686341