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12092891 is a prime number
BaseRepresentation
bin101110001000…
…010111011011
3211202101022212
4232020113123
511043433031
61111105335
7204534146
oct56102733
924671285
1012092891
11690a628
12407224b
132675375
14186b05d
1510dd12b
hexb885db

12092891 has 2 divisors, whose sum is σ = 12092892. Its totient is φ = 12092890.

The previous prime is 12092879. The next prime is 12092923. The reversal of 12092891 is 19829021.

It is a happy number.

It is an a-pointer prime, because the next prime (12092923) can be obtained adding 12092891 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12092891 - 210 = 12091867 is a prime.

It is a Chen prime.

It is equal to p793733 and since 12092891 and 793733 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12094891) 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, 6046445 + 6046446.

It is an arithmetic number, because the mean of its divisors is an integer number (6046446).

Almost surely, 212092891 is an apocalyptic number.

12092891 is a deficient number, since it is larger than the sum of its proper divisors (1).

12092891 is an equidigital number, since it uses as much as digits as its factorization.

12092891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 12092891 is about 3477.4834291482. The cubic root of 12092891 is about 229.5320732400.

The spelling of 12092891 in words is "twelve million, ninety-two thousand, eight hundred ninety-one".