Search a number
-
+
389235 = 35711337
BaseRepresentation
bin1011111000001110011
3201202221010
41133001303
544423420
612202003
73210540
oct1370163
9652833
10389235
11246490
12169303
13108222
14a1bc7
157a4e0
hex5f073

389235 has 32 divisors (see below), whose sum is σ = 778752. Its totient is φ = 161280.

The previous prime is 389231. The next prime is 389269. The reversal of 389235 is 532983.

It is a happy number.

It is not a de Polignac number, because 389235 - 22 = 389231 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389231) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 987 + ... + 1323.

It is an arithmetic number, because the mean of its divisors is an integer number (24336).

2389235 is an apocalyptic number.

389235 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

389235 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389235 is a wasteful number, since it uses less digits than its factorization.

389235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its digits is 6480, while the sum is 30.

The square root of 389235 is about 623.8870090008. The cubic root of 389235 is about 73.0136335329.

The spelling of 389235 in words is "three hundred eighty-nine thousand, two hundred thirty-five".

Divisors: 1 3 5 7 11 15 21 33 35 55 77 105 165 231 337 385 1011 1155 1685 2359 3707 5055 7077 11121 11795 18535 25949 35385 55605 77847 129745 389235