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230346161 = 1571467173
BaseRepresentation
bin11011011101011…
…00110110110001
3121001102210112022
431232230312301
5432432034121
634505041225
75464624103
oct1556546661
9531383468
10230346161
1110902a531
1265186215
1338950a06
1422841573
1515350aab
hexdbacdb1

230346161 has 4 divisors (see below), whose sum is σ = 231813492. Its totient is φ = 228878832.

The previous prime is 230346157. The next prime is 230346197. The reversal of 230346161 is 161643032.

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 71081761 + 159264400 = 8431^2 + 12620^2 .

It is a cyclic number.

It is not a de Polignac number, because 230346161 - 22 = 230346157 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 230346161.

It is not an unprimeable number, because it can be changed into a prime (230346131) 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, 733430 + ... + 733743.

It is an arithmetic number, because the mean of its divisors is an integer number (57953373).

Almost surely, 2230346161 is an apocalyptic number.

It is an amenable number.

230346161 is a deficient number, since it is larger than the sum of its proper divisors (1467331).

230346161 is a wasteful number, since it uses less digits than its factorization.

230346161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467330.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 230346161 is about 15177.1591874105. The cubic root of 230346161 is about 612.9997906515. Note that the first 3 decimals are identical.

Adding to 230346161 its reverse (161643032), we get a palindrome (391989193).

The spelling of 230346161 in words is "two hundred thirty million, three hundred forty-six thousand, one hundred sixty-one".

Divisors: 1 157 1467173 230346161