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230115353 = 1317701181
BaseRepresentation
bin11011011011101…
…00100000011001
3121001000001220212
431231310200121
5432402142403
634500100505
75462643146
oct1555644031
9531001825
10230115353
11108992086
1265094735
133889c940
14227c13cd
15153074d8
hexdb74819

230115353 has 4 divisors (see below), whose sum is σ = 247816548. Its totient is φ = 212414160.

The previous prime is 230115343. The next prime is 230115373. The reversal of 230115353 is 353511032.

230115353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 94322944 + 135792409 = 9712^2 + 11653^2 .

It is a cyclic number.

It is not a de Polignac number, because 230115353 - 28 = 230115097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230115313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8850578 + ... + 8850603.

It is an arithmetic number, because the mean of its divisors is an integer number (61954137).

Almost surely, 2230115353 is an apocalyptic number.

It is an amenable number.

230115353 is a deficient number, since it is larger than the sum of its proper divisors (17701195).

230115353 is a wasteful number, since it uses less digits than its factorization.

230115353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17701194.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 230115353 is about 15169.5534871663. The cubic root of 230115353 is about 612.7949792816.

Adding to 230115353 its reverse (353511032), we get a palindrome (583626385).

The spelling of 230115353 in words is "two hundred thirty million, one hundred fifteen thousand, three hundred fifty-three".

Divisors: 1 13 17701181 230115353