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601389 = 3266821
BaseRepresentation
bin10010010110100101101
31010112221200
42102310231
5123221024
620520113
75053215
oct2226455
91115850
10601389
11380918
12250039
13180969
14119245
15bd2c9
hex92d2d

601389 has 6 divisors (see below), whose sum is σ = 868686. Its totient is φ = 400920.

The previous prime is 601379. The next prime is 601397. The reversal of 601389 is 983106.

601389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 412164 + 189225 = 642^2 + 435^2 .

It is not a de Polignac number, because 601389 - 25 = 601357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33402 + ... + 33419.

It is an arithmetic number, because the mean of its divisors is an integer number (144781).

2601389 is an apocalyptic number.

It is an amenable number.

601389 is a deficient number, since it is larger than the sum of its proper divisors (267297).

601389 is a wasteful number, since it uses less digits than its factorization.

601389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66827 (or 66824 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 601389 is about 775.4927465812. The cubic root of 601389 is about 84.4083012582.

It can be divided in two parts, 601 and 389, that added together give a triangular number (990 = T44).

The spelling of 601389 in words is "six hundred one thousand, three hundred eighty-nine".

Divisors: 1 3 9 66821 200463 601389