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230529 = 31323257
BaseRepresentation
bin111000010010000001
3102201020010
4320102001
524334104
64535133
71650045
oct702201
9381203
10230529
11148222
12b14a9
1380c10
1460025
1548489
hex38481

230529 has 16 divisors (see below), whose sum is σ = 346752. Its totient is φ = 135168.

The previous prime is 230507. The next prime is 230539. The reversal of 230529 is 925032.

It is not a de Polignac number, because 230529 - 28 = 230273 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

230529 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (230539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 769 + ... + 1025.

It is an arithmetic number, because the mean of its divisors is an integer number (21672).

2230529 is an apocalyptic number.

230529 is the 257-th nonagonal number.

It is an amenable number.

230529 is a deficient number, since it is larger than the sum of its proper divisors (116223).

230529 is a wasteful number, since it uses less digits than its factorization.

230529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 230529 is about 480.1343561963. The cubic root of 230529 is about 61.3161938824.

The spelling of 230529 in words is "two hundred thirty thousand, five hundred twenty-nine".

Divisors: 1 3 13 23 39 69 257 299 771 897 3341 5911 10023 17733 76843 230529