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230745 = 3515383
BaseRepresentation
bin111000010101011001
3102201112010
4320111121
524340440
64540133
71650504
oct702531
9381463
10230745
111483a9
12b1649
1381048
146013b
1548580
hex38559

230745 has 8 divisors (see below), whose sum is σ = 369216. Its totient is φ = 123056.

The previous prime is 230743. The next prime is 230761. The reversal of 230745 is 547032.

It is a happy number.

230745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230745 - 21 = 230743 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 215 + 37 + 76 + 0 + 42 + 57 .

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

It is not an unprimeable number, because it can be changed into a prime (230743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7677 + ... + 7706.

It is an arithmetic number, because the mean of its divisors is an integer number (46152).

2230745 is an apocalyptic number.

It is an amenable number.

230745 is a deficient number, since it is larger than the sum of its proper divisors (138471).

230745 is a wasteful number, since it uses less digits than its factorization.

230745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15391.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 230745 is about 480.3592405690. The cubic root of 230745 is about 61.3353384925.

Adding to 230745 its reverse (547032), we get a palindrome (777777).

The spelling of 230745 in words is "two hundred thirty thousand, seven hundred forty-five".

Divisors: 1 3 5 15 15383 46149 76915 230745