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18560042 = 243921139
BaseRepresentation
bin100011011001…
…1010000101010
31021220221120222
41012303100222
514222410132
61501450042
7313520624
oct106632052
937827528
1018560042
11a527486
126270922
133acab97
142671c14
151969412
hex11b342a

18560042 has 8 divisors (see below), whose sum is σ = 27904800. Its totient is φ = 9258444.

The previous prime is 18560021. The next prime is 18560053. The reversal of 18560042 is 24006581.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 18559993 and 18560020.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9692 + ... + 11447.

It is an arithmetic number, because the mean of its divisors is an integer number (3488100).

Almost surely, 218560042 is an apocalyptic number.

18560042 is a deficient number, since it is larger than the sum of its proper divisors (9344758).

18560042 is a wasteful number, since it uses less digits than its factorization.

18560042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21580.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 18560042 is about 4308.1367202075. The cubic root of 18560042 is about 264.7644376353.

The spelling of 18560042 in words is "eighteen million, five hundred sixty thousand, forty-two".

Divisors: 1 2 439 878 21139 42278 9280021 18560042