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230103745 = 5159728817
BaseRepresentation
bin11011011011100…
…01101011000001
3121000222110222221
431231301223001
5432401304440
634455531041
75462564254
oct1555615301
9530873887
10230103745
11108984393
1265089a81
1338897581
14227bb09b
1515303d4a
hexdb71ac1

230103745 has 8 divisors (see below), whose sum is σ = 276306984. Its totient is φ = 183961344.

The previous prime is 230103743. The next prime is 230103749. The reversal of 230103745 is 547301032.

It can be written as a sum of positive squares in 4 ways, for example, as 45252529 + 184851216 = 6727^2 + 13596^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 230103745 - 21 = 230103743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230103743) 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, 6424 + ... + 22393.

It is an arithmetic number, because the mean of its divisors is an integer number (34538373).

Almost surely, 2230103745 is an apocalyptic number.

It is an amenable number.

230103745 is a deficient number, since it is larger than the sum of its proper divisors (46203239).

230103745 is a wasteful number, since it uses less digits than its factorization.

230103745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30419.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 230103745 is about 15169.1708738480. The cubic root of 230103745 is about 612.7846751108.

Adding to 230103745 its reverse (547301032), we get a palindrome (777404777).

The spelling of 230103745 in words is "two hundred thirty million, one hundred three thousand, seven hundred forty-five".

Divisors: 1 5 1597 7985 28817 144085 46020749 230103745