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18682041 = 371316791
BaseRepresentation
bin100011101000…
…1000010111001
31022011010221110
41013101002321
514240311131
61504230533
7314536410
oct107210271
938133843
1018682041
11a600104
12630b449
133b41581
1426a4477
151990646
hex11d10b9

18682041 has 16 divisors (see below), whose sum is σ = 28689408. Its totient is φ = 10592400.

The previous prime is 18682033. The next prime is 18682063. The reversal of 18682041 is 14028681.

It is not a de Polignac number, because 18682041 - 23 = 18682033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18682091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645 + ... + 6146.

It is an arithmetic number, because the mean of its divisors is an integer number (1793088).

Almost surely, 218682041 is an apocalyptic number.

It is an amenable number.

18682041 is a deficient number, since it is larger than the sum of its proper divisors (10007367).

18682041 is a wasteful number, since it uses less digits than its factorization.

18682041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 18682041 is about 4322.2726660867. The cubic root of 18682041 is about 265.3432883411.

The spelling of 18682041 in words is "eighteen million, six hundred eighty-two thousand, forty-one".

Divisors: 1 3 7 21 131 393 917 2751 6791 20373 47537 142611 889621 2668863 6227347 18682041