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18134041 = 23997559
BaseRepresentation
bin100010100101…
…1010000011001
31021010022020011
41011023100121
514120242131
61444401521
7310064632
oct105132031
937108204
1018134041
11a266412
1260a62a1
1339ac003
1425a0889
1518d30b1
hex114b419

18134041 has 4 divisors (see below), whose sum is σ = 18144000. Its totient is φ = 18124084.

The previous prime is 18134027. The next prime is 18134069. The reversal of 18134041 is 14043181.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14043181 = 28334957.

It is a cyclic number.

It is not a de Polignac number, because 18134041 - 25 = 18134009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18134071) 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, 1381 + ... + 6178.

It is an arithmetic number, because the mean of its divisors is an integer number (4536000).

Almost surely, 218134041 is an apocalyptic number.

It is an amenable number.

18134041 is a deficient number, since it is larger than the sum of its proper divisors (9959).

18134041 is an equidigital number, since it uses as much as digits as its factorization.

18134041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9958.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 18134041 is about 4258.4082707040. The cubic root of 18134041 is about 262.7230623995.

The spelling of 18134041 in words is "eighteen million, one hundred thirty-four thousand, forty-one".

Divisors: 1 2399 7559 18134041