Search a number
-
+
230523404 = 22293919609
BaseRepresentation
bin11011011110110…
…00001000001100
3121001202210122212
431233120020030
5433003222104
634512525552
75466262616
oct1557301014
9531683585
10230523404
11109140711
12652508b8
13389b35a7
1422889db6
151538836e
hexdbd820c

230523404 has 12 divisors (see below), whose sum is σ = 403573800. Its totient is φ = 115216608.

The previous prime is 230523401. The next prime is 230523421. The reversal of 230523404 is 404325032.

It is a self number, because there is not a number n which added to its sum of digits gives 230523404.

It is not an unprimeable number, because it can be changed into a prime (230523401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1952 + ... + 21560.

It is an arithmetic number, because the mean of its divisors is an integer number (33631150).

Almost surely, 2230523404 is an apocalyptic number.

It is an amenable number.

230523404 is a deficient number, since it is larger than the sum of its proper divisors (173050396).

230523404 is a wasteful number, since it uses less digits than its factorization.

230523404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22552 (or 22550 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 230523404 is about 15182.9972008164. The cubic root of 230523404 is about 613.1569773626.

Adding to 230523404 its reverse (404325032), we get a palindrome (634848436).

The spelling of 230523404 in words is "two hundred thirty million, five hundred twenty-three thousand, four hundred four".

Divisors: 1 2 4 2939 5878 11756 19609 39218 78436 57630851 115261702 230523404