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212316329 is a prime number
BaseRepresentation
bin11001010011110…
…11000010101001
3112210111210020202
430221323002221
5413323110304
633022401545
75155442021
oct1451730251
9483453222
10212316329
11a9935445
125b1302b5
1334caa284
14202aaa81
151398d81e
hexca7b0a9

212316329 has 2 divisors, whose sum is σ = 212316330. Its totient is φ = 212316328.

The previous prime is 212316311. The next prime is 212316331. The reversal of 212316329 is 923613212.

212316329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184226329 + 28090000 = 13573^2 + 5300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212316329 is a prime.

Together with 212316331, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212316389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106158164 + 106158165.

It is an arithmetic number, because the mean of its divisors is an integer number (106158165).

Almost surely, 2212316329 is an apocalyptic number.

It is an amenable number.

212316329 is a deficient number, since it is larger than the sum of its proper divisors (1).

212316329 is an equidigital number, since it uses as much as digits as its factorization.

212316329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 29.

The square root of 212316329 is about 14571.0785119016. The cubic root of 212316329 is about 596.5696183652.

The spelling of 212316329 in words is "two hundred twelve million, three hundred sixteen thousand, three hundred twenty-nine".