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11987267 is a prime number
BaseRepresentation
bin101101101110…
…100101000011
3211120000102212
4231232211003
511032043032
61104532335
7203614205
oct55564503
924500385
1011987267
116848236
1240210ab
132639276
141840775
1510bbbb2
hexb6e943

11987267 has 2 divisors, whose sum is σ = 11987268. Its totient is φ = 11987266.

The previous prime is 11987263. The next prime is 11987273. The reversal of 11987267 is 76278911.

11987267 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 is a cyclic number.

It is not a de Polignac number, because 11987267 - 22 = 11987263 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11987263) 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, 5993633 + 5993634.

It is an arithmetic number, because the mean of its divisors is an integer number (5993634).

Almost surely, 211987267 is an apocalyptic number.

11987267 is a deficient number, since it is larger than the sum of its proper divisors (1).

11987267 is an equidigital number, since it uses as much as digits as its factorization.

11987267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 41.

The square root of 11987267 is about 3462.2632771065. The cubic root of 11987267 is about 228.8618440395.

The spelling of 11987267 in words is "eleven million, nine hundred eighty-seven thousand, two hundred sixty-seven".