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230332121 = 709324869
BaseRepresentation
bin11011011101010…
…01011011011001
3121001102002021022
431232221123121
5432431111441
634504452225
75464535135
oct1556513331
9531362238
10230332121
1110901aa28
126517a075
13389474c6
142283a3c5
151534b84b
hexdba96d9

230332121 has 4 divisors (see below), whose sum is σ = 230657700. Its totient is φ = 230006544.

The previous prime is 230332103. The next prime is 230332129. The reversal of 230332121 is 121233032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 119661721 + 110670400 = 10939^2 + 10520^2 .

It is a cyclic number.

It is not a de Polignac number, because 230332121 - 210 = 230331097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230332121.

It is not an unprimeable number, because it can be changed into a prime (230332129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161726 + ... + 163143.

It is an arithmetic number, because the mean of its divisors is an integer number (57664425).

Almost surely, 2230332121 is an apocalyptic number.

It is an amenable number.

230332121 is a deficient number, since it is larger than the sum of its proper divisors (325579).

230332121 is an equidigital number, since it uses as much as digits as its factorization.

230332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325578.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 230332121 is about 15176.6966432093. The cubic root of 230332121 is about 612.9873359298.

Adding to 230332121 its reverse (121233032), we get a palindrome (351565153).

The spelling of 230332121 in words is "two hundred thirty million, three hundred thirty-two thousand, one hundred twenty-one".

Divisors: 1 709 324869 230332121