Search a number
-
+
230200231 = 297937939
BaseRepresentation
bin11011011100010…
…01001110100111
3121001011101100111
431232021032213
5432412401411
634501553451
75463445462
oct1556111647
9531141314
10230200231
11108a3a928
1265115887
13388cc471
14228042d9
1515322721
hexdb893a7

230200231 has 4 divisors (see below), whose sum is σ = 238138200. Its totient is φ = 222262264.

The previous prime is 230200207. The next prime is 230200237. The reversal of 230200231 is 132002032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 230200231 - 211 = 230198183 is a prime.

It is a super-2 number, since 2×2302002312 = 105984292704906722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230200237) 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, 3968941 + ... + 3968998.

It is an arithmetic number, because the mean of its divisors is an integer number (59534550).

Almost surely, 2230200231 is an apocalyptic number.

230200231 is a deficient number, since it is larger than the sum of its proper divisors (7937969).

230200231 is an equidigital number, since it uses as much as digits as its factorization.

230200231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7937968.

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

The square root of 230200231 is about 15172.3508725576. The cubic root of 230200231 is about 612.8703131202.

Adding to 230200231 its reverse (132002032), we get a palindrome (362202263).

The spelling of 230200231 in words is "two hundred thirty million, two hundred thousand, two hundred thirty-one".

Divisors: 1 29 7937939 230200231