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523369 = 7211971
BaseRepresentation
bin1111111110001101001
3222120221001
41333301221
5113221434
615115001
74306600
oct1776151
9876831
10523369
11328240
12212a61
131542b2
14d8a37
15a5114
hex7fc69

523369 has 12 divisors (see below), whose sum is σ = 664848. Its totient is φ = 407400.

The previous prime is 523357. The next prime is 523387. The reversal of 523369 is 963325.

It is not a de Polignac number, because 523369 - 29 = 522857 is a prime.

It is a super-2 number, since 2×5233692 = 547830220322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523349) 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 11 ways as a sum of consecutive naturals, for example, 54 + ... + 1024.

It is an arithmetic number, because the mean of its divisors is an integer number (55404).

2523369 is an apocalyptic number.

It is an amenable number.

523369 is a deficient number, since it is larger than the sum of its proper divisors (141479).

523369 is a wasteful number, since it uses less digits than its factorization.

523369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996 (or 989 counting only the distinct ones).

The product of its digits is 4860, while the sum is 28.

The square root of 523369 is about 723.4424648858. The cubic root of 523369 is about 80.5878058917.

The spelling of 523369 in words is "five hundred twenty-three thousand, three hundred sixty-nine".

Divisors: 1 7 11 49 77 539 971 6797 10681 47579 74767 523369