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686130 = 23522871
BaseRepresentation
bin10100111100000110010
31021212012020
42213200302
5133424010
622412310
75555244
oct2474062
91255166
10686130
11429555
12291096
131b03c3
1413c094
15d8470
hexa7832

686130 has 16 divisors (see below), whose sum is σ = 1646784. Its totient is φ = 182960.

The previous prime is 686117. The next prime is 686131. The reversal of 686130 is 31686.

It is a self number, because there is not a number n which added to its sum of digits gives 686130.

It is not an unprimeable number, because it can be changed into a prime (686131) 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, 11406 + ... + 11465.

It is an arithmetic number, because the mean of its divisors is an integer number (102924).

2686130 is an apocalyptic number.

686130 is an abundant number, since it is smaller than the sum of its proper divisors (960654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

686130 is a wasteful number, since it uses less digits than its factorization.

686130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22881.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 686130 is about 828.3296445257. The cubic root of 686130 is about 88.2000442202.

The spelling of 686130 in words is "six hundred eighty-six thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 22871 45742 68613 114355 137226 228710 343065 686130