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676580 = 22533829
BaseRepresentation
bin10100101001011100100
31021101002112
42211023210
5133122310
622300152
75515352
oct2451344
91241075
10676580
11422363
12287658
131a8c58
141387d2
15d5705
hexa52e4

676580 has 12 divisors (see below), whose sum is σ = 1420860. Its totient is φ = 270624.

The previous prime is 676573. The next prime is 676589. The reversal of 676580 is 85676.

It can be written as a sum of positive squares in 2 ways, for example, as 369664 + 306916 = 608^2 + 554^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (676589) by changing a digit.

676580 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16895 + ... + 16934.

It is an arithmetic number, because the mean of its divisors is an integer number (118405).

2676580 is an apocalyptic number.

It is an amenable number.

676580 is an abundant number, since it is smaller than the sum of its proper divisors (744280).

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

676580 is a wasteful number, since it uses less digits than its factorization.

676580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33838 (or 33836 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 676580 is about 822.5448316049. The cubic root of 676580 is about 87.7889224872.

The spelling of 676580 in words is "six hundred seventy-six thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 33829 67658 135316 169145 338290 676580