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825308 = 221118757
BaseRepresentation
bin11001001011111011100
31112221002222
43021133130
5202402213
625404512
710005101
oct3113734
91487088
10825308
11514080
12339738
1322b863
14176aa8
15114808
hexc97dc

825308 has 12 divisors (see below), whose sum is σ = 1575672. Its totient is φ = 375120.

The previous prime is 825301. The next prime is 825329. The reversal of 825308 is 803528.

It is a super-2 number, since 2×8253082 = 1362266589728, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9335 + ... + 9422.

It is an arithmetic number, because the mean of its divisors is an integer number (131306).

2825308 is an apocalyptic number.

It is an amenable number.

825308 is a deficient number, since it is larger than the sum of its proper divisors (750364).

825308 is a wasteful number, since it uses less digits than its factorization.

825308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18772 (or 18770 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 825308 is about 908.4646388275. The cubic root of 825308 is about 93.8005428204.

The spelling of 825308 in words is "eight hundred twenty-five thousand, three hundred eight".

Divisors: 1 2 4 11 22 44 18757 37514 75028 206327 412654 825308