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28016041 is a prime number
BaseRepresentation
bin110101011011…
…1110110101001
31221201100210011
41222313312221
524133003131
62440251521
7460063264
oct152676651
957640704
1028016041
11148a5959
129470ba1
135a5bc51
143a13cdb
1526d60b1
hex1ab7da9

28016041 has 2 divisors, whose sum is σ = 28016042. Its totient is φ = 28016040.

The previous prime is 28016039. The next prime is 28016063. The reversal of 28016041 is 14061082.

It is an a-pointer prime, because the next prime (28016063) can be obtained adding 28016041 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27878400 + 137641 = 5280^2 + 371^2 .

It is a cyclic number.

It is not a de Polignac number, because 28016041 - 21 = 28016039 is a prime.

Together with 28016039, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28016011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14008020 + 14008021.

It is an arithmetic number, because the mean of its divisors is an integer number (14008021).

Almost surely, 228016041 is an apocalyptic number.

It is an amenable number.

28016041 is a deficient number, since it is larger than the sum of its proper divisors (1).

28016041 is an equidigital number, since it uses as much as digits as its factorization.

28016041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 28016041 is about 5293.0181371312. The cubic root of 28016041 is about 303.7168741219.

The spelling of 28016041 in words is "twenty-eight million, sixteen thousand, forty-one".