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8258213 is a prime number
BaseRepresentation
bin11111100000001010100101
3120112120010202
4133200022211
54103230323
6453000245
7130123265
oct37401245
916476122
108258213
114730577
122923085
131931b22
14114d7a5
15ad1d28
hex7e02a5

8258213 has 2 divisors, whose sum is σ = 8258214. Its totient is φ = 8258212.

The previous prime is 8258207. The next prime is 8258227. The reversal of 8258213 is 3128528.

8258213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8025889 + 232324 = 2833^2 + 482^2 .

It is a cyclic number.

It is not a de Polignac number, because 8258213 - 24 = 8258197 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 (8258203) 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 as a sum of consecutive naturals, namely, 4129106 + 4129107.

It is an arithmetic number, because the mean of its divisors is an integer number (4129107).

Almost surely, 28258213 is an apocalyptic number.

It is an amenable number.

8258213 is a deficient number, since it is larger than the sum of its proper divisors (1).

8258213 is an equidigital number, since it uses as much as digits as its factorization.

8258213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 29.

The square root of 8258213 is about 2873.7106674124. The cubic root of 8258213 is about 202.1290307209.

The spelling of 8258213 in words is "eight million, two hundred fifty-eight thousand, two hundred thirteen".