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389804 = 221923223
BaseRepresentation
bin1011111001010101100
3201210201012
41133022230
544433204
612204352
73212312
oct1371254
9653635
10389804
11246958
121696b8
1310856c
14a20b2
157a76e
hex5f2ac

389804 has 24 divisors (see below), whose sum is σ = 752640. Its totient is φ = 175824.

The previous prime is 389797. The next prime is 389819. The reversal of 389804 is 408983.

389804 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1637 + ... + 1859.

It is an arithmetic number, because the mean of its divisors is an integer number (31360).

2389804 is an apocalyptic number.

It is an amenable number.

389804 is a deficient number, since it is larger than the sum of its proper divisors (362836).

389804 is a wasteful number, since it uses less digits than its factorization.

389804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 389804 is about 624.3428545279. The cubic root of 389804 is about 73.0491943381.

The spelling of 389804 in words is "three hundred eighty-nine thousand, eight hundred four".

Divisors: 1 2 4 19 23 38 46 76 92 223 437 446 874 892 1748 4237 5129 8474 10258 16948 20516 97451 194902 389804