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13212341 is a prime number
BaseRepresentation
bin110010011001…
…101010110101
3220212020220222
4302121222311
511340243331
61151104125
7220205642
oct62315265
926766828
1013212341
11750469a
124512045
132977a6c
141a7cdc9
15125eb7b
hexc99ab5

13212341 has 2 divisors, whose sum is σ = 13212342. Its totient is φ = 13212340.

The previous prime is 13212337. The next prime is 13212347. The reversal of 13212341 is 14321231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9394225 + 3818116 = 3065^2 + 1954^2 .

It is a cyclic number.

It is not a de Polignac number, because 13212341 - 22 = 13212337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13212347) 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, 6606170 + 6606171.

It is an arithmetic number, because the mean of its divisors is an integer number (6606171).

Almost surely, 213212341 is an apocalyptic number.

It is an amenable number.

13212341 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212341 is an equidigital number, since it uses as much as digits as its factorization.

13212341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 17.

The square root of 13212341 is about 3634.8784023678. The cubic root of 13212341 is about 236.4067783498.

Adding to 13212341 its reverse (14321231), we get a palindrome (27533572).

The spelling of 13212341 in words is "thirteen million, two hundred twelve thousand, three hundred forty-one".