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531212 = 221112073
BaseRepresentation
bin10000001101100001100
3222222200112
42001230030
5113444322
615215152
74341503
oct2015414
9888615
10531212
11333120
122174b8
13157a36
14db83a
15a75e2
hex81b0c

531212 has 12 divisors (see below), whose sum is σ = 1014216. Its totient is φ = 241440.

The previous prime is 531203. The next prime is 531229. The reversal of 531212 is 212135.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5993 + ... + 6080.

It is an arithmetic number, because the mean of its divisors is an integer number (84518).

2531212 is an apocalyptic number.

It is an amenable number.

531212 is a deficient number, since it is larger than the sum of its proper divisors (483004).

531212 is a wasteful number, since it uses less digits than its factorization.

531212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12088 (or 12086 counting only the distinct ones).

The product of its digits is 60, while the sum is 14.

The square root of 531212 is about 728.8429186046. The cubic root of 531212 is about 80.9883639232.

Adding to 531212 its reverse (212135), we get a palindrome (743347).

The spelling of 531212 in words is "five hundred thirty-one thousand, two hundred twelve".

Divisors: 1 2 4 11 22 44 12073 24146 48292 132803 265606 531212