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28394183 is a prime number
BaseRepresentation
bin110110001010…
…0001011000111
31222102120111102
41230110023013
524232103213
62452330315
7463226606
oct154241307
958376442
1028394183
1115033a74
12961399b
135b620bc
143ab1a3d
15275d158
hex1b142c7

28394183 has 2 divisors, whose sum is σ = 28394184. Its totient is φ = 28394182.

The previous prime is 28394159. The next prime is 28394203. The reversal of 28394183 is 38149382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28394183 - 214 = 28377799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28394143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14197091 + 14197092.

It is an arithmetic number, because the mean of its divisors is an integer number (14197092).

Almost surely, 228394183 is an apocalyptic number.

28394183 is a deficient number, since it is larger than the sum of its proper divisors (1).

28394183 is an equidigital number, since it uses as much as digits as its factorization.

28394183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 28394183 is about 5328.6192395404. The cubic root of 28394183 is about 305.0772284951.

The spelling of 28394183 in words is "twenty-eight million, three hundred ninety-four thousand, one hundred eighty-three".