Search a number
-
+
231045405323 = 439173585757
BaseRepresentation
bin1101011100101101100…
…0010001101010001011
3211002100221200200101012
43113023120101222023
512241140110432243
6254050224514135
722456343353535
oct3271330215213
9732327620335
10231045405323
1189a93120777
123894077b94b
1318a3115b3b5
14b27b2d6855
156023c4cd18
hex35cb611a8b

231045405323 has 8 divisors (see below), whose sum is σ = 236444731248. Its totient is φ = 225647269344.

The previous prime is 231045405181. The next prime is 231045405343. The reversal of 231045405323 is 323504540132.

231045405323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 231045405323 - 28 = 231045405067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231045405323.

It is not an unprimeable number, because it can be changed into a prime (231045405343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101561 + ... + 687317.

It is an arithmetic number, because the mean of its divisors is an integer number (29555591406).

Almost surely, 2231045405323 is an apocalyptic number.

231045405323 is a deficient number, since it is larger than the sum of its proper divisors (5399325925).

231045405323 is an equidigital number, since it uses as much as digits as its factorization.

231045405323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594973.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 231045405323 its reverse (323504540132), we get a palindrome (554549945455).

The spelling of 231045405323 in words is "two hundred thirty-one billion, forty-five million, four hundred five thousand, three hundred twenty-three".

Divisors: 1 43 9173 394439 585757 25187551 5373148961 231045405323