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18416041 = 72630863
BaseRepresentation
bin100011001000…
…0000110101001
31021122122001121
41012100012221
514203303131
61454415241
7312351040
oct106200651
937578047
1018416041
11a439276
126201521
133a7a487
142635557
15193b911
hex11901a9

18416041 has 4 divisors (see below), whose sum is σ = 21046912. Its totient is φ = 15785172.

The previous prime is 18416033. The next prime is 18416053. The reversal of 18416041 is 14061481.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18416041 - 23 = 18416033 is a prime.

It is a super-2 number, since 2×184160412 = 678301132227362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18415997 and 18416015.

It is not an unprimeable number, because it can be changed into a prime (18416071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1315425 + ... + 1315438.

It is an arithmetic number, because the mean of its divisors is an integer number (5261728).

Almost surely, 218416041 is an apocalyptic number.

It is an amenable number.

18416041 is a deficient number, since it is larger than the sum of its proper divisors (2630871).

18416041 is an equidigital number, since it uses as much as digits as its factorization.

18416041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630870.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 18416041 is about 4291.3914992692. The cubic root of 18416041 is about 264.0779202577.

The spelling of 18416041 in words is "eighteen million, four hundred sixteen thousand, forty-one".

Divisors: 1 7 2630863 18416041