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389043 = 351601
BaseRepresentation
bin1011110111110110011
3201202200000
41132332303
544422133
612201043
73210144
oct1367663
9652600
10389043
11246326
12169183
13108105
14a1acb
157a413
hex5efb3

389043 has 12 divisors (see below), whose sum is σ = 583128. Its totient is φ = 259200.

The previous prime is 389041. The next prime is 389047. The reversal of 389043 is 340983.

It is not a de Polignac number, because 389043 - 21 = 389041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 388998 and 389016.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389043.

It is not an unprimeable number, because it can be changed into a prime (389041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 558 + ... + 1043.

It is an arithmetic number, because the mean of its divisors is an integer number (48594).

2389043 is an apocalyptic number.

389043 is a deficient number, since it is larger than the sum of its proper divisors (194085).

389043 is an equidigital number, since it uses as much as digits as its factorization.

389043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616 (or 1604 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 389043 is about 623.7331160040. The cubic root of 389043 is about 73.0016262852.

The spelling of 389043 in words is "three hundred eighty-nine thousand, forty-three".

Divisors: 1 3 9 27 81 243 1601 4803 14409 43227 129681 389043