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18914341 is a prime number
BaseRepresentation
bin100100000100…
…1110000100101
31022120221121011
41020021300211
514320224331
61513222221
7316524565
oct110116045
938527534
1018914341
11a749696
126401971
133bc3224
142724da5
1519d93b1
hex1209c25

18914341 has 2 divisors, whose sum is σ = 18914342. Its totient is φ = 18914340.

The previous prime is 18914339. The next prime is 18914381. The reversal of 18914341 is 14341981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16524225 + 2390116 = 4065^2 + 1546^2 .

It is an emirp because it is prime and its reverse (14341981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18914341 - 21 = 18914339 is a prime.

Together with 18914339, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18914381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9457170 + 9457171.

It is an arithmetic number, because the mean of its divisors is an integer number (9457171).

Almost surely, 218914341 is an apocalyptic number.

It is an amenable number.

18914341 is a deficient number, since it is larger than the sum of its proper divisors (1).

18914341 is an equidigital number, since it uses as much as digits as its factorization.

18914341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 31.

The square root of 18914341 is about 4349.0620827944. The cubic root of 18914341 is about 266.4385561419.

The spelling of 18914341 in words is "eighteen million, nine hundred fourteen thousand, three hundred forty-one".