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20268682 = 278916267
BaseRepresentation
bin100110101010…
…0011010001010
31102010202101221
41031110122022
520142044212
62002232254
7334165240
oct115243212
942122357
1020268682
1110494185
12695568a
134278805
142998790
151ba5807
hex135468a

20268682 has 16 divisors (see below), whose sum is σ = 35138880. Its totient is φ = 8588448.

The previous prime is 20268671. The next prime is 20268691. The reversal of 20268682 is 28686202.

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, 6888 + ... + 9379.

It is an arithmetic number, because the mean of its divisors is an integer number (2196180).

Almost surely, 220268682 is an apocalyptic number.

20268682 is a deficient number, since it is larger than the sum of its proper divisors (14870198).

20268682 is a wasteful number, since it uses less digits than its factorization.

20268682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16365.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 20268682 is about 4502.0752992370. The cubic root of 20268682 is about 272.6518840178.

The spelling of 20268682 in words is "twenty million, two hundred sixty-eight thousand, six hundred eighty-two".

Divisors: 1 2 7 14 89 178 623 1246 16267 32534 113869 227738 1447763 2895526 10134341 20268682