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520012 = 22130003
BaseRepresentation
bin1111110111101001100
3222102022201
41332331030
5113120022
615051244
74264033
oct1767514
9872281
10520012
11325769
12210b24
131528cc
14d771a
15a4127
hex7ef4c

520012 has 6 divisors (see below), whose sum is σ = 910028. Its totient is φ = 260004.

The previous prime is 519997. The next prime is 520019. The reversal of 520012 is 210025.

It is not an unprimeable number, because it can be changed into a prime (520019) 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 as a sum of consecutive naturals, namely, 64998 + ... + 65005.

2520012 is an apocalyptic number.

It is an amenable number.

520012 is a deficient number, since it is larger than the sum of its proper divisors (390016).

520012 is a wasteful number, since it uses less digits than its factorization.

520012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130007 (or 130005 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 520012 is about 721.1185755477. The cubic root of 520012 is about 80.4151337402.

Adding to 520012 its reverse (210025), we get a palindrome (730037).

It can be divided in two parts, 52001 and 2, that added together give a triangular number (52003 = T322).

The spelling of 520012 in words is "five hundred twenty thousand, twelve".

Divisors: 1 2 4 130003 260006 520012