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231468 = 22319289
BaseRepresentation
bin111000100000101100
3102202111220
4320200230
524401333
64543340
71652556
oct704054
9382456
10231468
111489a6
12b1b50
1381483
14604d6
15488b3
hex3882c

231468 has 12 divisors (see below), whose sum is σ = 540120. Its totient is φ = 77152.

The previous prime is 231463. The next prime is 231479. The reversal of 231468 is 864132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (231461) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 9633 + ... + 9656.

It is an arithmetic number, because the mean of its divisors is an integer number (45010).

2231468 is an apocalyptic number.

It is an amenable number.

231468 is an abundant number, since it is smaller than the sum of its proper divisors (308652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231468 is a wasteful number, since it uses less digits than its factorization.

231468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19296 (or 19294 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 231468 is about 481.1112137542. Note that the first 3 decimals coincide. The cubic root of 231468 is about 61.3993329653.

The spelling of 231468 in words is "two hundred thirty-one thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 19289 38578 57867 77156 115734 231468