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523505325 = 3527997153
BaseRepresentation
bin11111001101000…
…000111010101101
31100111001211022010
4133031000322231
52033004132300
6123540311433
715654502410
oct3715007255
91314054263
10523505325
11249561332
121273a2579
13845c4b85
144d753b77
1530e5ca50
hex1f340ead

523505325 has 24 divisors (see below), whose sum is σ = 989176768. Its totient is φ = 239316480.

The previous prime is 523505291. The next prime is 523505351.

523505325 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 523505325 - 28 = 523505069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 523505292 and 523505301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 498052 + ... + 499101.

Almost surely, 2523505325 is an apocalyptic number.

It is an amenable number.

523505325 is a deficient number, since it is larger than the sum of its proper divisors (465671443).

523505325 is a wasteful number, since it uses less digits than its factorization.

523505325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997173 (or 997168 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 30.

The square root of 523505325 is about 22880.2387443838. The cubic root of 523505325 is about 805.9480234407.

It can be divided in two parts, 52350 and 5325, that added together give a palindrome (57675).

The spelling of 523505325 in words is "five hundred twenty-three million, five hundred five thousand, three hundred twenty-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 525 997153 2991459 4985765 6980071 14957295 20940213 24928825 34900355 74786475 104701065 174501775 523505325