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230200213 = 1719768737
BaseRepresentation
bin11011011100010…
…01001110010101
3121001011101022211
431232021032111
5432412401323
634501553421
75463445435
oct1556111625
9531141284
10230200213
11108a3a911
1265115871
13388cc459
14228042c5
151532270d
hexdb89395

230200213 has 8 divisors (see below), whose sum is σ = 244982232. Its totient is φ = 215556096.

The previous prime is 230200207. The next prime is 230200237. The reversal of 230200213 is 312002032.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 109683729 + 120516484 = 10473^2 + 10978^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230200213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230200193 and 230200202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230200283) 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, 31020 + ... + 37717.

It is an arithmetic number, because the mean of its divisors is an integer number (30622779).

Almost surely, 2230200213 is an apocalyptic number.

It is an amenable number.

230200213 is a deficient number, since it is larger than the sum of its proper divisors (14782019).

230200213 is a wasteful number, since it uses less digits than its factorization.

230200213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68951.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 230200213 is about 15172.3502793733. The cubic root of 230200213 is about 612.8702971462.

Adding to 230200213 its reverse (312002032), we get a palindrome (542202245).

The spelling of 230200213 in words is "two hundred thirty million, two hundred thousand, two hundred thirteen".

Divisors: 1 17 197 3349 68737 1168529 13541189 230200213