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231233 = 792927
BaseRepresentation
bin111000011101000001
3102202012012
4320131001
524344413
64542305
71652102
oct703501
9382165
10231233
11148802
12b1995
1381332
14603a9
15487a8
hex38741

231233 has 4 divisors (see below), whose sum is σ = 234240. Its totient is φ = 228228.

The previous prime is 231223. The next prime is 231241. The reversal of 231233 is 332132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231233 - 26 = 231169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231223) 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, 1385 + ... + 1542.

It is an arithmetic number, because the mean of its divisors is an integer number (58560).

2231233 is an apocalyptic number.

It is an amenable number.

231233 is a deficient number, since it is larger than the sum of its proper divisors (3007).

231233 is an equidigital number, since it uses as much as digits as its factorization.

231233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006.

The product of its digits is 108, while the sum is 14.

The square root of 231233 is about 480.8669254586. The cubic root of 231233 is about 61.3785471850.

Adding to 231233 its reverse (332132), we get a palindrome (563365).

It can be divided in two parts, 231 and 233, that added together give a palindrome (464).

The spelling of 231233 in words is "two hundred thirty-one thousand, two hundred thirty-three".

Divisors: 1 79 2927 231233