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13133212 = 2231105913
BaseRepresentation
bin110010000110…
…010110011100
3220201020101021
4302012112130
511330230322
61145253524
7216426151
oct62062634
926636337
1013133212
1174601a4
1244942a4
13294aa41
141a5c228
1512464c7
hexc8659c

13133212 has 12 divisors (see below), whose sum is σ = 23724736. Its totient is φ = 6354720.

The previous prime is 13133209. The next prime is 13133213. The reversal of 13133212 is 21233131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13133213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52833 + ... + 53080.

Almost surely, 213133212 is an apocalyptic number.

It is an amenable number.

13133212 is a deficient number, since it is larger than the sum of its proper divisors (10591524).

13133212 is a wasteful number, since it uses less digits than its factorization.

13133212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105948 (or 105946 counting only the distinct ones).

The product of its digits is 108, while the sum is 16.

The square root of 13133212 is about 3623.9773729978. The cubic root of 13133212 is about 235.9338845725.

Adding to 13133212 its reverse (21233131), we get a palindrome (34366343).

It can be divided in two parts, 13 and 133212, that added together give a square (133225 = 3652).

The spelling of 13133212 in words is "thirteen million, one hundred thirty-three thousand, two hundred twelve".

Divisors: 1 2 4 31 62 124 105913 211826 423652 3283303 6566606 13133212