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28092133 is a prime number
BaseRepresentation
bin110101100101…
…0011011100101
31221212020011101
41223022123211
524142422013
62442040101
7460531156
oct153123345
957766141
1028092133
1114948043
1294a9031
135a87784
143a3392d
1526ed8dd
hex1aca6e5

28092133 has 2 divisors, whose sum is σ = 28092134. Its totient is φ = 28092132.

The previous prime is 28092091. The next prime is 28092151. The reversal of 28092133 is 33129082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17960644 + 10131489 = 4238^2 + 3183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28092133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28099133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14046066 + 14046067.

It is an arithmetic number, because the mean of its divisors is an integer number (14046067).

Almost surely, 228092133 is an apocalyptic number.

It is an amenable number.

28092133 is a deficient number, since it is larger than the sum of its proper divisors (1).

28092133 is an equidigital number, since it uses as much as digits as its factorization.

28092133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 28092133 is about 5300.2012225952. The cubic root of 28092133 is about 303.9915921324.

The spelling of 28092133 in words is "twenty-eight million, ninety-two thousand, one hundred thirty-three".