Search a number
-
+
230224161 = 376741387
BaseRepresentation
bin11011011100011…
…11000100100001
3121001012121011210
431232033010201
5432414133121
634502300333
75463605316
oct1556170441
9531177153
10230224161
11108a56902
12651276a9
133890a31b
142280cd0d
1515329876
hexdb8f121

230224161 has 4 divisors (see below), whose sum is σ = 306965552. Its totient is φ = 153482772.

The previous prime is 230224157. The next prime is 230224201. The reversal of 230224161 is 161422032.

230224161 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 230224161 - 22 = 230224157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230224361) 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, 38370691 + ... + 38370696.

It is an arithmetic number, because the mean of its divisors is an integer number (76741388).

Almost surely, 2230224161 is an apocalyptic number.

It is an amenable number.

230224161 is a deficient number, since it is larger than the sum of its proper divisors (76741391).

230224161 is an equidigital number, since it uses as much as digits as its factorization.

230224161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76741390.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 230224161 is about 15173.1394576073. The cubic root of 230224161 is about 612.8915489495.

Adding to 230224161 its reverse (161422032), we get a palindrome (391646193).

The spelling of 230224161 in words is "two hundred thirty million, two hundred twenty-four thousand, one hundred sixty-one".

Divisors: 1 3 76741387 230224161