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230322321 = 3229882461
BaseRepresentation
bin11011011101001…
…11000010010001
3121001101120211100
431232213002101
5432430303241
634504335013
75464464435
oct1556470221
9531346740
10230322321
11109013629
1265174469
1338942bc8
14228369c5
15153489b6
hexdba7091

230322321 has 12 divisors (see below), whose sum is σ = 344160180. Its totient is φ = 148253280.

The previous prime is 230322271. The next prime is 230322331. The reversal of 230322321 is 123223032.

It is a happy number.

230322321 is a `hidden beast` number, since 23 + 0 + 322 + 321 = 666.

230322321 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 2 ways, for example, as 55130625 + 175191696 = 7425^2 + 13236^2 .

It is not a de Polignac number, because 230322321 - 27 = 230322193 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 230322294 and 230322303.

It is not an unprimeable number, because it can be changed into a prime (230322331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440970 + ... + 441491.

It is an arithmetic number, because the mean of its divisors is an integer number (28680015).

Almost surely, 2230322321 is an apocalyptic number.

It is an amenable number.

230322321 is a deficient number, since it is larger than the sum of its proper divisors (113837859).

230322321 is a wasteful number, since it uses less digits than its factorization.

230322321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882496 (or 882493 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 230322321 is about 15176.3737763670. The cubic root of 230322321 is about 612.9786421633.

Adding to 230322321 its reverse (123223032), we get a palindrome (353545353).

The spelling of 230322321 in words is "two hundred thirty million, three hundred twenty-two thousand, three hundred twenty-one".

Divisors: 1 3 9 29 87 261 882461 2647383 7942149 25591369 76774107 230322321