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522872 = 2379337
BaseRepresentation
bin1111111101001111000
3222120020122
41333221320
5113212442
615112412
74305260
oct1775170
9876218
10522872
11327929
12212708
13153cbc
14d87a0
15a4dd2
hex7fa78

522872 has 16 divisors (see below), whose sum is σ = 1120560. Its totient is φ = 224064.

The previous prime is 522871. The next prime is 522881. The reversal of 522872 is 278225.

It is a d-powerful number, because it can be written as 58 + 28 + 82 + 29 + 73 + 217 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4613 + ... + 4724.

It is an arithmetic number, because the mean of its divisors is an integer number (70035).

2522872 is an apocalyptic number.

It is an amenable number.

522872 is an abundant number, since it is smaller than the sum of its proper divisors (597688).

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

522872 is a wasteful number, since it uses less digits than its factorization.

522872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9350 (or 9346 counting only the distinct ones).

The product of its digits is 2240, while the sum is 26.

The square root of 522872 is about 723.0988867368. The cubic root of 522872 is about 80.5622886344.

The spelling of 522872 in words is "five hundred twenty-two thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 9337 18674 37348 65359 74696 130718 261436 522872