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681032 = 231171109
BaseRepresentation
bin10100110010001001000
31021121012102
42212101020
5133243112
622332532
75534342
oct2462110
91247172
10681032
11425740
1228a148
131aaca1
1413a292
15d6bc2
hexa6448

681032 has 32 divisors (see below), whose sum is σ = 1425600. Its totient is φ = 302400.

The previous prime is 681019. The next prime is 681041. The reversal of 681032 is 230186.

It is a junction number, because it is equal to n+sod(n) for n = 680995 and 681013.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 681032.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6194 + ... + 6302.

It is an arithmetic number, because the mean of its divisors is an integer number (44550).

2681032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 681032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (712800).

681032 is an abundant number, since it is smaller than the sum of its proper divisors (744568).

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

681032 is a wasteful number, since it uses less digits than its factorization.

681032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 681032 is about 825.2466298023. The cubic root of 681032 is about 87.9810565285.

The spelling of 681032 in words is "six hundred eighty-one thousand, thirty-two".

Divisors: 1 2 4 8 11 22 44 71 88 109 142 218 284 436 568 781 872 1199 1562 2398 3124 4796 6248 7739 9592 15478 30956 61912 85129 170258 340516 681032