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230930345 = 546186069
BaseRepresentation
bin11011100001110…
…11011110101001
3121002112110212202
431300323132221
5433104232340
634525345545
75502606212
oct1560733651
9532473782
10230930345
11109399428
12654082b5
1338ac6899
1422954409
1515418c15
hexdc3b7a9

230930345 has 4 divisors (see below), whose sum is σ = 277116420. Its totient is φ = 184744272.

The previous prime is 230930333. The next prime is 230930387. The reversal of 230930345 is 543039032.

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 71842576 + 159087769 = 8476^2 + 12613^2 .

It is a cyclic number.

It is not a de Polignac number, because 230930345 - 218 = 230668201 is a prime.

It is an unprimeable number.

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, 23093030 + ... + 23093039.

It is an arithmetic number, because the mean of its divisors is an integer number (69279105).

Almost surely, 2230930345 is an apocalyptic number.

It is an amenable number.

230930345 is a deficient number, since it is larger than the sum of its proper divisors (46186075).

230930345 is an equidigital number, since it uses as much as digits as its factorization.

230930345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46186074.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 230930345 is about 15196.3924995375. The cubic root of 230930345 is about 613.5175655265.

Adding to 230930345 its reverse (543039032), we get a palindrome (773969377).

The spelling of 230930345 in words is "two hundred thirty million, nine hundred thirty thousand, three hundred forty-five".

Divisors: 1 5 46186069 230930345