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230523403 = 1120956673
BaseRepresentation
bin11011011110110…
…00001000001011
3121001202210122211
431233120020023
5433003222103
634512525551
75466262615
oct1557301013
9531683584
10230523403
11109140710
12652508b7
13389b35a6
1422889db5
151538836d
hexdbd820b

230523403 has 4 divisors (see below), whose sum is σ = 251480088. Its totient is φ = 209566720.

The previous prime is 230523401. The next prime is 230523421. The reversal of 230523403 is 304325032.

230523403 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.

It is not a de Polignac number, because 230523403 - 21 = 230523401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230523401) 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, 10478326 + ... + 10478347.

It is an arithmetic number, because the mean of its divisors is an integer number (62870022).

Almost surely, 2230523403 is an apocalyptic number.

230523403 is a deficient number, since it is larger than the sum of its proper divisors (20956685).

230523403 is a wasteful number, since it uses less digits than its factorization.

230523403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20956684.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 230523403 is about 15182.9971678849. The cubic root of 230523403 is about 613.1569764760.

Adding to 230523403 its reverse (304325032), we get a palindrome (534848435).

The spelling of 230523403 in words is "two hundred thirty million, five hundred twenty-three thousand, four hundred three".

Divisors: 1 11 20956673 230523403