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518012 = 221161193
BaseRepresentation
bin1111110011101111100
3222022120122
41332131330
5113034022
615034112
74255145
oct1763574
9868518
10518012
11324210
1220b938
13151a21
14d6acc
15a3742
hex7e77c

518012 has 24 divisors (see below), whose sum is σ = 1010352. Its totient is φ = 230400.

The previous prime is 517999. The next prime is 518017. The reversal of 518012 is 210815.

It is a super-3 number, since 3×5180123 = 417004475663333184, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518017) by changing a digit.

518012 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2588 + ... + 2780.

It is an arithmetic number, because the mean of its divisors is an integer number (42098).

2518012 is an apocalyptic number.

It is an amenable number.

518012 is a deficient number, since it is larger than the sum of its proper divisors (492340).

518012 is a wasteful number, since it uses less digits than its factorization.

518012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 518012 is about 719.7305051198. The cubic root of 518012 is about 80.3119073422.

Adding to 518012 its reverse (210815), we get a palindrome (728827).

The spelling of 518012 in words is "five hundred eighteen thousand, twelve".

Divisors: 1 2 4 11 22 44 61 122 193 244 386 671 772 1342 2123 2684 4246 8492 11773 23546 47092 129503 259006 518012