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13223087 is a prime number
BaseRepresentation
bin110010011100…
…010010101111
3220212210122222
4302130102233
511341114322
61151225555
7220252163
oct62342257
926783588
1013223087
117511779
1245182bb
13297c917
141a82ca3
151262e42
hexc9c4af

13223087 has 2 divisors, whose sum is σ = 13223088. Its totient is φ = 13223086.

The previous prime is 13223083. The next prime is 13223123. The reversal of 13223087 is 78032231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13223087 - 22 = 13223083 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13223083) 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, 6611543 + 6611544.

It is an arithmetic number, because the mean of its divisors is an integer number (6611544).

Almost surely, 213223087 is an apocalyptic number.

13223087 is a deficient number, since it is larger than the sum of its proper divisors (1).

13223087 is an equidigital number, since it uses as much as digits as its factorization.

13223087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 13223087 is about 3636.3562806744. The cubic root of 13223087 is about 236.4708532631.

The spelling of 13223087 in words is "thirteen million, two hundred twenty-three thousand, eighty-seven".