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12108911 is a prime number
BaseRepresentation
bin101110001100…
…010001101111
3211210012022012
4232030101233
511044441121
61111311435
7204631643
oct56142157
924705265
1012108911
116920671
12407b57b
13267c749
141872c23
1510e2c5b
hexb8c46f

12108911 has 2 divisors, whose sum is σ = 12108912. Its totient is φ = 12108910.

The previous prime is 12108893. The next prime is 12108917. The reversal of 12108911 is 11980121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12108911 - 26 = 12108847 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 (12108917) 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, 6054455 + 6054456.

It is an arithmetic number, because the mean of its divisors is an integer number (6054456).

Almost surely, 212108911 is an apocalyptic number.

12108911 is a deficient number, since it is larger than the sum of its proper divisors (1).

12108911 is an equidigital number, since it uses as much as digits as its factorization.

12108911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The square root of 12108911 is about 3479.7860566420. The cubic root of 12108911 is about 229.6333856906.

The spelling of 12108911 in words is "twelve million, one hundred eight thousand, nine hundred eleven".