Search a number
-
+
232442143 = 1971172307
BaseRepresentation
bin11011101101011…
…00100100011111
3121012101021200021
431312230210133
5434001122033
635022013011
75521503613
oct1566544437
9535337607
10232442143
1110a23124a
1265a17167
1339205a3b
1422c29343
1515616b2d
hexddac91f

232442143 has 8 divisors (see below), whose sum is σ = 248123520. Its totient is φ = 217105560.

The previous prime is 232442137. The next prime is 232442183. The reversal of 232442143 is 341244232.

It is a happy number.

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 232442143 - 217 = 232311071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232442183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84805 + ... + 87502.

It is an arithmetic number, because the mean of its divisors is an integer number (31015440).

Almost surely, 2232442143 is an apocalyptic number.

232442143 is a deficient number, since it is larger than the sum of its proper divisors (15681377).

232442143 is a wasteful number, since it uses less digits than its factorization.

232442143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172397.

The product of its digits is 4608, while the sum is 25.

The square root of 232442143 is about 15246.0533581645. The cubic root of 232442143 is about 614.8534632255.

Adding to 232442143 its reverse (341244232), we get a palindrome (573686375).

The spelling of 232442143 in words is "two hundred thirty-two million, four hundred forty-two thousand, one hundred forty-three".

Divisors: 1 19 71 1349 172307 3273833 12233797 232442143