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231474 = 23173223
BaseRepresentation
bin111000100000110010
3102202112010
4320200302
524401344
64543350
71652565
oct704062
9382463
10231474
11148a01
12b1b56
1381489
14604dc
15488b9
hex38832

231474 has 16 divisors (see below), whose sum is σ = 467712. Its totient is φ = 76368.

The previous prime is 231463. The next prime is 231479. The reversal of 231474 is 474132.

231474 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 231474.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 231474.

It is not an unprimeable number, because it can be changed into a prime (231479) by changing a digit.

231474 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 in 7 ways as a sum of consecutive naturals, for example, 927 + ... + 1149.

It is an arithmetic number, because the mean of its divisors is an integer number (29232).

2231474 is an apocalyptic number.

231474 is an abundant number, since it is smaller than the sum of its proper divisors (236238).

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

231474 is a wasteful number, since it uses less digits than its factorization.

231474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401.

The product of its digits is 672, while the sum is 21.

The square root of 231474 is about 481.1174492782. The cubic root of 231474 is about 61.3998634819.

The spelling of 231474 in words is "two hundred thirty-one thousand, four hundred seventy-four".

Divisors: 1 2 3 6 173 223 346 446 519 669 1038 1338 38579 77158 115737 231474