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18490682 = 271996637
BaseRepresentation
bin100011010001…
…0010100111010
31021210102110002
41012202110322
514213200212
61500153002
7313111460
oct106422472
937712402
1018490682
11a48a361
126238762
133aa5442
142654830
151953ac2
hex11a253a

18490682 has 16 divisors (see below), whose sum is σ = 31862400. Its totient is φ = 7883568.

The previous prime is 18490673. The next prime is 18490691. The reversal of 18490682 is 28609481.

It is an interprime number because it is at equal distance from previous prime (18490673) and next prime (18490691).

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 7 ways as a sum of consecutive naturals, for example, 533 + ... + 6104.

It is an arithmetic number, because the mean of its divisors is an integer number (1991400).

Almost surely, 218490682 is an apocalyptic number.

18490682 is a deficient number, since it is larger than the sum of its proper divisors (13371718).

18490682 is a wasteful number, since it uses less digits than its factorization.

18490682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6845.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 18490682 is about 4300.0793015943. The cubic root of 18490682 is about 264.4342123611.

The spelling of 18490682 in words is "eighteen million, four hundred ninety thousand, six hundred eighty-two".

Divisors: 1 2 7 14 199 398 1393 2786 6637 13274 46459 92918 1320763 2641526 9245341 18490682