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28067951 is a prime number
BaseRepresentation
bin110101100010…
…0100001101111
31221210222222202
41223010201233
524141133301
62441332115
7460400522
oct153044157
957728882
1028067951
111493095a
12949703b
135a79772
143a28bb9
1526e666b
hex1ac486f

28067951 has 2 divisors, whose sum is σ = 28067952. Its totient is φ = 28067950.

The previous prime is 28067939. The next prime is 28067953. The reversal of 28067951 is 15976082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28067951 - 26 = 28067887 is a prime.

It is a Sophie Germain prime.

Together with 28067953, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28067953) 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, 14033975 + 14033976.

It is an arithmetic number, because the mean of its divisors is an integer number (14033976).

Almost surely, 228067951 is an apocalyptic number.

28067951 is a deficient number, since it is larger than the sum of its proper divisors (1).

28067951 is an equidigital number, since it uses as much as digits as its factorization.

28067951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 28067951 is about 5297.9194973121. The cubic root of 28067951 is about 303.9043407182.

The spelling of 28067951 in words is "twenty-eight million, sixty-seven thousand, nine hundred fifty-one".