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530804 = 22132701
BaseRepresentation
bin10000001100101110100
3222222010102
42001211310
5113441204
615213232
74340351
oct2014564
9888112
10530804
1133288a
12217218
131577b1
14db628
15a741e
hex81974

530804 has 6 divisors (see below), whose sum is σ = 928914. Its totient is φ = 265400.

The previous prime is 530797. The next prime is 530807. The reversal of 530804 is 408035.

It can be written as a sum of positive squares in only one way, i.e., 490000 + 40804 = 700^2 + 202^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530807) by changing a digit.

530804 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 as a sum of consecutive naturals, namely, 66347 + ... + 66354.

It is an arithmetic number, because the mean of its divisors is an integer number (154819).

2530804 is an apocalyptic number.

It is an amenable number.

530804 is a deficient number, since it is larger than the sum of its proper divisors (398110).

530804 is a wasteful number, since it uses less digits than its factorization.

530804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132705 (or 132703 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 530804 is about 728.5629691386. The cubic root of 530804 is about 80.9676241082.

Adding to 530804 its reverse (408035), we get a palindrome (938839).

The spelling of 530804 in words is "five hundred thirty thousand, eight hundred four".

Divisors: 1 2 4 132701 265402 530804