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BaseRepresentation
bin111000011101000000
3102202012011
4320131000
524344412
64542304
71652101
oct703500
9382164
10231232
11148801
12b1994
1381331
14603a8
15487a7
hex38740

231232 has 14 divisors (see below), whose sum is σ = 458978. Its totient is φ = 115584.

The previous prime is 231223. The next prime is 231241. The reversal of 231232 is 232132.

It is a happy number.

231232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231223) and next prime (231241).

It can be written as a sum of positive squares in only one way, i.e., 118336 + 112896 = 344^2 + 336^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1743 + ... + 1870.

2231232 is an apocalyptic number.

It is an amenable number.

231232 is a deficient number, since it is larger than the sum of its proper divisors (227746).

231232 is an equidigital number, since it uses as much as digits as its factorization.

231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625 (or 3615 counting only the distinct ones).

The product of its digits is 72, while the sum is 13.

The square root of 231232 is about 480.8658856688. The cubic root of 231232 is about 61.3784587048.

Adding to 231232 its reverse (232132), we get a palindrome (463364).

Subtracting 231232 from its reverse (232132), we obtain a square (900 = 302).

It can be divided in two parts, 2312 and 32, that multiplied together give a square (73984 = 2722).

The spelling of 231232 in words is "two hundred thirty-one thousand, two hundred thirty-two".
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