Search a number
-
+
18342041 is a prime number
BaseRepresentation
bin100010111111…
…0000010011001
31021111212112212
41011332002121
514143421131
61453044505
7311622224
oct105760231
937455485
1018342041
11a398713
126186735
133a528a3
1426165bb
151924a2b
hex117e099

18342041 has 2 divisors, whose sum is σ = 18342042. Its totient is φ = 18342040.

The previous prime is 18342013. The next prime is 18342043. The reversal of 18342041 is 14024381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10916416 + 7425625 = 3304^2 + 2725^2 .

It is a cyclic number.

It is not a de Polignac number, because 18342041 - 210 = 18341017 is a prime.

Together with 18342043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18341998 and 18342016.

It is not a weakly prime, because it can be changed into another prime (18342043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9171020 + 9171021.

It is an arithmetic number, because the mean of its divisors is an integer number (9171021).

Almost surely, 218342041 is an apocalyptic number.

It is an amenable number.

18342041 is a deficient number, since it is larger than the sum of its proper divisors (1).

18342041 is an equidigital number, since it uses as much as digits as its factorization.

18342041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 18342041 is about 4282.7609085729. The cubic root of 18342041 is about 263.7237362945.

It can be divided in two parts, 183 and 42041, that added together give a palindrome (42224).

The spelling of 18342041 in words is "eighteen million, three hundred forty-two thousand, forty-one".