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525860442 = 23229214469
BaseRepresentation
bin11111010101111…
…111111001011010
31100122111110220200
4133111333321122
52034110013232
6124103003030
716013511552
oct3725777132
91318443820
10525860442
1124a91a808
12128139476
1384c3ab33
144dba8162
153127577c
hex1f57fe5a

525860442 has 12 divisors (see below), whose sum is σ = 1139364330. Its totient is φ = 175286808.

The previous prime is 525860441. The next prime is 525860453. The reversal of 525860442 is 244068525.

It is a happy number.

525860442 is a `hidden beast` number, since 5 + 2 + 5 + 8 + 604 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 492440481 + 33419961 = 22191^2 + 5781^2 .

It is a junction number, because it is equal to n+sod(n) for n = 525860397 and 525860406.

It is not an unprimeable number, because it can be changed into a prime (525860441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14607217 + ... + 14607252.

Almost surely, 2525860442 is an apocalyptic number.

525860442 is an abundant number, since it is smaller than the sum of its proper divisors (613503888).

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

525860442 is a wasteful number, since it uses less digits than its factorization.

525860442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29214477 (or 29214474 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 525860442 is about 22931.6471715400. The cubic root of 525860442 is about 807.1548004841.

The spelling of 525860442 in words is "five hundred twenty-five million, eight hundred sixty thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 29214469 58428938 87643407 175286814 262930221 525860442