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525804942 = 23136741089
BaseRepresentation
bin11111010101110…
…010010110001110
31100122101122210010
4133111302112032
52034101224232
6124101454050
716013161005
oct3725622616
91318348703
10525804942
1124a892043
12128111326
1384c1b7b0
144db91c3c
15312640cc
hex1f57258e

525804942 has 16 divisors (see below), whose sum is σ = 1132503120. Its totient is φ = 161786112.

The previous prime is 525804941. The next prime is 525804943. The reversal of 525804942 is 249408525.

It is an interprime number because it is at equal distance from previous prime (525804941) and next prime (525804943).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 525804942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525804941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3370467 + ... + 3370622.

It is an arithmetic number, because the mean of its divisors is an integer number (70781445).

Almost surely, 2525804942 is an apocalyptic number.

525804942 is an abundant number, since it is smaller than the sum of its proper divisors (606698178).

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

525804942 is a wasteful number, since it uses less digits than its factorization.

525804942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6741107.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 525804942 is about 22930.4370215659. The cubic root of 525804942 is about 807.1264034267.

The spelling of 525804942 in words is "five hundred twenty-five million, eight hundred four thousand, nine hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 6741089 13482178 20223267 40446534 87634157 175268314 262902471 525804942