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2015213 is a prime number
BaseRepresentation
bin111101011111111101101
310210101100112
413223333231
51003441323
6111105405
723062154
oct7537755
93711315
102015213
111157072
12812265
13557345
143a659b
1529c178
hex1ebfed

2015213 has 2 divisors, whose sum is σ = 2015214. Its totient is φ = 2015212.

The previous prime is 2015203. The next prime is 2015267. The reversal of 2015213 is 3125102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2010724 + 4489 = 1418^2 + 67^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015213 - 26 = 2015149 is a prime.

It is a super-2 number, since 2×20152132 = 8122166870738, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007606 + 1007607.

It is an arithmetic number, because the mean of its divisors is an integer number (1007607).

22015213 is an apocalyptic number.

It is an amenable number.

2015213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015213 is an equidigital number, since it uses as much as digits as its factorization.

2015213 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2015213 is about 1419.5819807253. The cubic root of 2015213 is about 126.3107514042.

The spelling of 2015213 in words is "two million, fifteen thousand, two hundred thirteen".