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518527028 = 22373503561
BaseRepresentation
bin11110111010000…
…001100000110100
31100010200220100202
4132322001200310
52030220331103
6123241500032
715564256415
oct3672014064
91303626322
10518527028
11246771038
121257a1618
1383570c36
144cc1980c
15307c7988
hex1ee81834

518527028 has 12 divisors (see below), whose sum is σ = 931947492. Its totient is φ = 252256320.

The previous prime is 518527027. The next prime is 518527063. The reversal of 518527028 is 820725815.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 234334864 + 284192164 = 15308^2 + 16858^2 .

It is a junction number, because it is equal to n+sod(n) for n = 518526982 and 518527000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518527027) 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, 1751633 + ... + 1751928.

It is an arithmetic number, because the mean of its divisors is an integer number (77662291).

Almost surely, 2518527028 is an apocalyptic number.

It is an amenable number.

518527028 is a deficient number, since it is larger than the sum of its proper divisors (413420464).

518527028 is a wasteful number, since it uses less digits than its factorization.

518527028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503602 (or 3503600 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 518527028 is about 22771.1885504468. The cubic root of 518527028 is about 803.3851494998.

The spelling of 518527028 in words is "five hundred eighteen million, five hundred twenty-seven thousand, twenty-eight".

Divisors: 1 2 4 37 74 148 3503561 7007122 14014244 129631757 259263514 518527028