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230540 = 22511527
BaseRepresentation
bin111000010010001100
3102201020112
4320102030
524334130
64535152
71650062
oct702214
9381215
10230540
11148232
12b14b8
1380c1b
1460032
1548495
hex3848c

230540 has 12 divisors (see below), whose sum is σ = 484176. Its totient is φ = 92208.

The previous prime is 230539. The next prime is 230551. The reversal of 230540 is 45032.

230540 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 (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5744 + ... + 5783.

It is an arithmetic number, because the mean of its divisors is an integer number (40348).

2230540 is an apocalyptic number.

230540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230540 is an abundant number, since it is smaller than the sum of its proper divisors (253636).

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

230540 is a wasteful number, since it uses less digits than its factorization.

230540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11536 (or 11534 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 230540 is about 480.1458111866. The cubic root of 230540 is about 61.3171691283.

Adding to 230540 its reverse (45032), we get a palindrome (275572).

The spelling of 230540 in words is "two hundred thirty thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 11527 23054 46108 57635 115270 230540