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18496741 is a prime number
BaseRepresentation
bin100011010001…
…1110011100101
31021210201202111
41012203303211
514213343431
61500241021
7313135234
oct106436345
937721674
1018496741
11a49396a
126240171
133aa8123
142656b1b
1519557b1
hex11a3ce5

18496741 has 2 divisors, whose sum is σ = 18496742. Its totient is φ = 18496740.

The previous prime is 18496733. The next prime is 18496759. The reversal of 18496741 is 14769481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17724100 + 772641 = 4210^2 + 879^2 .

It is a cyclic number.

It is not a de Polignac number, because 18496741 - 23 = 18496733 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18496694 and 18496703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18496721) 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, 9248370 + 9248371.

It is an arithmetic number, because the mean of its divisors is an integer number (9248371).

Almost surely, 218496741 is an apocalyptic number.

It is an amenable number.

18496741 is a deficient number, since it is larger than the sum of its proper divisors (1).

18496741 is an equidigital number, since it uses as much as digits as its factorization.

18496741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 40.

The square root of 18496741 is about 4300.7837657804. The cubic root of 18496741 is about 264.4630923473.

The spelling of 18496741 in words is "eighteen million, four hundred ninety-six thousand, seven hundred forty-one".