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676530 = 23257517
BaseRepresentation
bin10100101001010110010
31021101000200
42211022302
5133122110
622300030
75515251
oct2451262
91241020
10676530
11422318
12287616
131a8c1a
14138798
15d56c0
hexa52b2

676530 has 24 divisors (see below), whose sum is σ = 1759212. Its totient is φ = 180384.

The previous prime is 676523. The next prime is 676573. The reversal of 676530 is 35676.

676530 is a `hidden beast` number, since 6 + 7 + 653 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 651249 + 25281 = 807^2 + 159^2 .

It is a super-4 number, since 4×6765304 (a number of 24 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 676494 and 676503.

It is an unprimeable number.

676530 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 11 ways as a sum of consecutive naturals, for example, 3669 + ... + 3848.

2676530 is an apocalyptic number.

676530 is an abundant number, since it is smaller than the sum of its proper divisors (1082682).

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

676530 is a wasteful number, since it uses less digits than its factorization.

676530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7530 (or 7527 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 676530 is about 822.5144375633. The cubic root of 676530 is about 87.7867598682.

The spelling of 676530 in words is "six hundred seventy-six thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 7517 15034 22551 37585 45102 67653 75170 112755 135306 225510 338265 676530