Search a number
-
+
231024151 is a prime number
BaseRepresentation
bin11011100010100…
…10011000010111
3121002201020120001
431301102120113
5433120233101
634531352131
75503446541
oct1561223027
9532636501
10231024151
11109452956
1265452647
1338b2a4a7
142297a691
1515436901
hexdc52617

231024151 has 2 divisors, whose sum is σ = 231024152. Its totient is φ = 231024150.

The previous prime is 231024149. The next prime is 231024161. The reversal of 231024151 is 151420132.

231024151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231024151 - 21 = 231024149 is a prime.

Together with 231024149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231024161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115512075 + 115512076.

It is an arithmetic number, because the mean of its divisors is an integer number (115512076).

Almost surely, 2231024151 is an apocalyptic number.

231024151 is a deficient number, since it is larger than the sum of its proper divisors (1).

231024151 is an equidigital number, since it uses as much as digits as its factorization.

231024151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 231024151 is about 15199.4786423745. The cubic root of 231024151 is about 613.6006264134.

Adding to 231024151 its reverse (151420132), we get a palindrome (382444283).

The spelling of 231024151 in words is "two hundred thirty-one million, twenty-four thousand, one hundred fifty-one".